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x=\"50\" y=\"75\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"80\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">WebSocket Connection</tspan></text></g><g data-et=\"note\" data-id=\"i7\"><rect x=\"50\" y=\"370\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"375\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"control-structure\" data-id=\"i9\"><line x1=\"30\" y1=\"168\" x2=\"677\" y2=\"168\" class=\"loopLine\"></line><line x1=\"677\" y1=\"168\" x2=\"677\" y2=\"427\" class=\"loopLine\"></line><line x1=\"30\" y1=\"427\" x2=\"677\" y2=\"427\" class=\"loopLine\"></line><line x1=\"30\" y1=\"168\" x2=\"30\" y2=\"427\" class=\"loopLine\"></line><line x1=\"30\" y1=\"264\" x2=\"677\" y2=\"264\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"30,168 80,168 80,181 71.6,188 30,188\" class=\"labelBox\"></polygon><text x=\"55\" y=\"181\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"186\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[WS accepted]</tspan></text><text x=\"353.5\" y=\"282\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[WS rejected]</text></g><g data-et=\"note\" data-id=\"i10\"><rect x=\"50\" y=\"437\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"442\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Session Start</tspan></text></g><g data-et=\"note\" data-id=\"i12\"><rect x=\"657\" y=\"548\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"274\" height=\"56\" class=\"note\"></rect><text x=\"794\" y=\"553\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"794\">First protocol message.</tspan></text><text x=\"794\" y=\"571\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"794\">Server decides to accept or decline.</tspan></text></g><g data-et=\"note\" data-id=\"i18\"><rect x=\"50\" y=\"834\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"839\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"control-structure\" data-id=\"i20\"><line x1=\"30\" y1=\"614\" x2=\"677\" y2=\"614\" class=\"loopLine\"></line><line x1=\"677\" y1=\"614\" x2=\"677\" y2=\"891\" class=\"loopLine\"></line><line x1=\"30\" y1=\"891\" x2=\"677\" y2=\"891\" class=\"loopLine\"></line><line x1=\"30\" y1=\"614\" x2=\"30\" y2=\"891\" class=\"loopLine\"></line><line x1=\"30\" y1=\"728\" x2=\"677\" y2=\"728\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"30,614 80,614 80,627 71.6,634 30,634\" class=\"labelBox\"></polygon><text x=\"55\" y=\"627\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"632\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Accepted]</tspan></text><text x=\"353.5\" y=\"746\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[Declined]</text></g><g data-et=\"note\" data-id=\"i21\"><rect x=\"50\" y=\"901\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"906\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Live Relay Loop</tspan></text></g><g data-et=\"note\" data-id=\"i24\"><rect x=\"50\" y=\"1014\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1019\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">STT (Platform to Server)</tspan></text></g><g data-et=\"note\" data-id=\"i28\"><rect x=\"50\" y=\"1156\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1161\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">TTS (Server to Platform)</tspan></text></g><g data-et=\"note\" data-id=\"i30\"><rect x=\"-193\" y=\"1268\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"243\" height=\"55\" class=\"note\"></rect><text x=\"-71\" y=\"1273\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"-71\">Multiple chunks allowed.</tspan></text><text x=\"-71\" y=\"1291\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"-71\">A batch ends when isLast=true.</tspan></text></g><g data-et=\"note\" data-id=\"i33\"><rect x=\"50\" y=\"1363\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1368\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Playback Status (Platform to Server)</tspan></text></g><g data-et=\"note\" data-id=\"i37\"><rect x=\"50\" y=\"1505\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1510\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">DTMF (Bidirectional)</tspan></text></g><g data-et=\"note\" data-id=\"i42\"><rect x=\"50\" y=\"1708\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1713\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Interrupt Handling</tspan></text></g><g data-et=\"control-structure\" data-id=\"i47\"><line x1=\"64\" y1=\"1865\" x2=\"643\" y2=\"1865\" class=\"loopLine\"></line><line x1=\"643\" y1=\"1865\" x2=\"643\" y2=\"1974\" class=\"loopLine\"></line><line x1=\"64\" y1=\"1974\" x2=\"643\" y2=\"1974\" class=\"loopLine\"></line><line x1=\"64\" y1=\"1865\" x2=\"64\" y2=\"1974\" class=\"loopLine\"></line><polygon points=\"64,1865 114,1865 114,1878 105.6,1885 64,1885\" class=\"labelBox\"></polygon><text x=\"89\" y=\"1878\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"1883\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Manual stop requested]</tspan></text></g><g data-et=\"note\" data-id=\"i49\"><rect x=\"50\" y=\"2029\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"2034\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Playback continues normally.</tspan></text></g><g data-et=\"control-structure\" data-id=\"i50\"><line x1=\"40\" y1=\"1756\" x2=\"667\" y2=\"1756\" class=\"loopLine\"></line><line x1=\"667\" y1=\"1756\" x2=\"667\" y2=\"2077\" class=\"loopLine\"></line><line x1=\"40\" y1=\"2077\" x2=\"667\" y2=\"2077\" class=\"loopLine\"></line><line x1=\"40\" y1=\"1756\" x2=\"40\" y2=\"2077\" class=\"loopLine\"></line><line x1=\"40\" y1=\"1989\" x2=\"667\" y2=\"1989\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"40,1756 90,1756 90,1769 81.6,1776 40,1776\" class=\"labelBox\"></polygon><text x=\"65\" y=\"1769\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"1774\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Speech detected during TTS]</tspan></text><text x=\"353.5\" y=\"2007\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[No speech interruption]</text></g><g data-et=\"control-structure\" data-id=\"i52\"><line x1=\"-213\" y1=\"949\" x2=\"687\" y2=\"949\" class=\"loopLine\"></line><line x1=\"687\" y1=\"949\" x2=\"687\" y2=\"2097\" class=\"loopLine\"></line><line x1=\"-213\" y1=\"2097\" x2=\"687\" y2=\"2097\" class=\"loopLine\"></line><line x1=\"-213\" y1=\"949\" x2=\"-213\" y2=\"2097\" class=\"loopLine\"></line><polygon points=\"-213,949 -163,949 -163,962 -171.4,969 -213,969\" class=\"labelBox\"></polygon><text x=\"-188\" y=\"962\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">loop</text><text x=\"262\" y=\"967\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"262\">[While call is active]</tspan></text></g><g data-et=\"note\" data-id=\"i53\"><rect x=\"50\" y=\"2107\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"2112\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Call End</tspan></text></g><g data-et=\"note\" data-id=\"i57\"><rect x=\"50\" y=\"2263\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"2268\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"note\" data-id=\"i62\"><rect x=\"50\" y=\"2429\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"2434\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"control-structure\" data-id=\"i64\"><line x1=\"30\" y1=\"2154\" x2=\"677\" y2=\"2154\" class=\"loopLine\"></line><line x1=\"677\" y1=\"2154\" x2=\"677\" y2=\"2486\" class=\"loopLine\"></line><line x1=\"30\" y1=\"2486\" x2=\"677\" y2=\"2486\" class=\"loopLine\"></line><line x1=\"30\" y1=\"2154\" x2=\"30\" y2=\"2486\" class=\"loopLine\"></line><line x1=\"30\" y1=\"2325\" x2=\"677\" y2=\"2325\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"30,2154 80,2154 80,2167 71.6,2174 30,2174\" class=\"labelBox\"></polygon><text x=\"55\" y=\"2167\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"2172\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Customer closes connection]</tspan></text><text x=\"353.5\" y=\"2343\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[Sinch ends call]</text></g><text x=\"352\" y=\"127\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">WS connect request</text><line x1=\"76\" y1=\"158\" x2=\"628\" y2=\"158\" class=\"messageLine0\" data-et=\"message\" data-id=\"i1\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"218\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Accept connection</text><line x1=\"631\" y1=\"249\" x2=\"79\" y2=\"249\" class=\"messageLine1\" data-et=\"message\" data-id=\"i3\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"355\" y=\"309\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Non-success response</text><line x1=\"631\" y1=\"340\" x2=\"79\" y2=\"340\" class=\"messageLine1\" data-et=\"message\" data-id=\"i5\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-crosshead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"352\" y=\"489\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">ConnectRequest</text><text x=\"352\" y=\"507\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: connect}</text><line x1=\"76\" y1=\"538\" x2=\"628\" y2=\"538\" class=\"messageLine0\" data-et=\"message\" data-id=\"i11\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"664\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">AnswerResponse</text><text x=\"355\" y=\"682\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: answer}</text><line x1=\"631\" y1=\"713\" x2=\"79\" y2=\"713\" class=\"messageLine0\" data-et=\"message\" data-id=\"i14\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"773\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Close WebSocket (no answer)</text><line x1=\"631\" y1=\"804\" x2=\"79\" y2=\"804\" class=\"messageLine0\" data-et=\"message\" data-id=\"i16\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1067\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">TextMessage</text><text x=\"352\" y=\"1085\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: text}</text><line x1=\"76\" y1=\"1116\" x2=\"628\" y2=\"1116\" class=\"messageLine0\" data-et=\"message\" data-id=\"i25\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"1209\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">TextResponseMessage</text><text x=\"355\" y=\"1227\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: text}</text><line x1=\"631\" y1=\"1258\" x2=\"79\" y2=\"1258\" class=\"messageLine0\" data-et=\"message\" data-id=\"i29\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1416\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">PlaybackEvent</text><text x=\"352\" y=\"1434\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: textPlaybackStart|textPlaybackStop|textPlaybackCancel}</text><line x1=\"76\" y1=\"1465\" x2=\"628\" y2=\"1465\" class=\"messageLine0\" data-et=\"message\" data-id=\"i34\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-cb3bd385e87d3f53b3fc13bed5c74d2a7556cd5412b69590f497aab162f49d3c-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1558\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">DtmfReceive</text><text x=\"352\" y=\"1575\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, 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Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[WS accepted]</tspan></text><text x=\"353.5\" y=\"282\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[WS rejected]</text></g><g data-et=\"note\" data-id=\"i10\"><rect x=\"50\" y=\"437\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"442\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Session Start</tspan></text></g><g data-et=\"note\" data-id=\"i12\"><rect x=\"657\" y=\"548\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"274\" height=\"56\" class=\"note\"></rect><text x=\"794\" y=\"553\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"794\">First protocol message.</tspan></text><text x=\"794\" y=\"571\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"794\">Server decides to accept or decline.</tspan></text></g><g data-et=\"note\" data-id=\"i18\"><rect x=\"50\" y=\"834\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"839\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"control-structure\" data-id=\"i20\"><line x1=\"30\" y1=\"614\" x2=\"677\" y2=\"614\" class=\"loopLine\"></line><line x1=\"677\" y1=\"614\" x2=\"677\" y2=\"891\" class=\"loopLine\"></line><line x1=\"30\" y1=\"891\" x2=\"677\" y2=\"891\" class=\"loopLine\"></line><line x1=\"30\" y1=\"614\" x2=\"30\" y2=\"891\" class=\"loopLine\"></line><line x1=\"30\" y1=\"728\" x2=\"677\" y2=\"728\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"30,614 80,614 80,627 71.6,634 30,634\" class=\"labelBox\"></polygon><text x=\"55\" y=\"627\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"632\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Accepted]</tspan></text><text x=\"353.5\" y=\"746\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[Declined]</text></g><g data-et=\"note\" data-id=\"i21\"><rect x=\"50\" y=\"901\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"906\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Live Relay Loop</tspan></text></g><g data-et=\"note\" data-id=\"i24\"><rect x=\"50\" y=\"1014\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1019\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">STT (Platform to Server)</tspan></text></g><g data-et=\"note\" data-id=\"i28\"><rect x=\"50\" y=\"1156\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1161\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">TTS (Server to Platform)</tspan></text></g><g data-et=\"note\" data-id=\"i30\"><rect x=\"-193\" y=\"1268\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"243\" height=\"55\" class=\"note\"></rect><text x=\"-71\" y=\"1273\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"-71\">Multiple chunks allowed.</tspan></text><text x=\"-71\" y=\"1291\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"-71\">A batch ends when isLast=true.</tspan></text></g><g data-et=\"note\" data-id=\"i33\"><rect x=\"50\" y=\"1363\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1368\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Playback Status (Platform to Server)</tspan></text></g><g data-et=\"note\" data-id=\"i37\"><rect x=\"50\" y=\"1505\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1510\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">DTMF (Bidirectional)</tspan></text></g><g data-et=\"note\" data-id=\"i42\"><rect x=\"50\" y=\"1708\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"1713\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Interrupt Handling</tspan></text></g><g data-et=\"control-structure\" data-id=\"i47\"><line x1=\"64\" y1=\"1865\" x2=\"643\" y2=\"1865\" class=\"loopLine\"></line><line x1=\"643\" y1=\"1865\" x2=\"643\" y2=\"1974\" class=\"loopLine\"></line><line x1=\"64\" y1=\"1974\" x2=\"643\" y2=\"1974\" class=\"loopLine\"></line><line x1=\"64\" y1=\"1865\" x2=\"64\" y2=\"1974\" class=\"loopLine\"></line><polygon points=\"64,1865 114,1865 114,1878 105.6,1885 64,1885\" class=\"labelBox\"></polygon><text x=\"89\" y=\"1878\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"1883\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Manual stop requested]</tspan></text></g><g data-et=\"note\" data-id=\"i49\"><rect x=\"50\" y=\"2029\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"38\" class=\"note\"></rect><text x=\"354\" y=\"2034\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Playback continues normally.</tspan></text></g><g data-et=\"control-structure\" data-id=\"i50\"><line x1=\"40\" y1=\"1756\" x2=\"667\" y2=\"1756\" class=\"loopLine\"></line><line x1=\"667\" y1=\"1756\" x2=\"667\" y2=\"2077\" class=\"loopLine\"></line><line x1=\"40\" y1=\"2077\" x2=\"667\" y2=\"2077\" class=\"loopLine\"></line><line x1=\"40\" y1=\"1756\" x2=\"40\" y2=\"2077\" class=\"loopLine\"></line><line x1=\"40\" y1=\"1989\" x2=\"667\" y2=\"1989\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"40,1756 90,1756 90,1769 81.6,1776 40,1776\" class=\"labelBox\"></polygon><text x=\"65\" y=\"1769\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"1774\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Speech detected during TTS]</tspan></text><text x=\"353.5\" y=\"2007\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[No speech interruption]</text></g><g data-et=\"control-structure\" data-id=\"i52\"><line x1=\"-213\" y1=\"949\" x2=\"687\" y2=\"949\" class=\"loopLine\"></line><line x1=\"687\" y1=\"949\" x2=\"687\" y2=\"2097\" class=\"loopLine\"></line><line x1=\"-213\" y1=\"2097\" x2=\"687\" y2=\"2097\" class=\"loopLine\"></line><line x1=\"-213\" y1=\"949\" x2=\"-213\" y2=\"2097\" class=\"loopLine\"></line><polygon points=\"-213,949 -163,949 -163,962 -171.4,969 -213,969\" class=\"labelBox\"></polygon><text x=\"-188\" y=\"962\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">loop</text><text x=\"262\" y=\"967\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"262\">[While call is active]</tspan></text></g><g data-et=\"note\" data-id=\"i53\"><rect x=\"50\" y=\"2107\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"2112\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Call End</tspan></text></g><g data-et=\"note\" data-id=\"i57\"><rect x=\"50\" y=\"2263\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"2268\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"note\" data-id=\"i62\"><rect x=\"50\" y=\"2429\" fill=\"#EDF2AE\" stroke=\"#666\" width=\"607\" height=\"37\" class=\"note\"></rect><text x=\"354\" y=\"2434\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"noteText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"354\">Stream ended</tspan></text></g><g data-et=\"control-structure\" data-id=\"i64\"><line x1=\"30\" y1=\"2154\" x2=\"677\" y2=\"2154\" class=\"loopLine\"></line><line x1=\"677\" y1=\"2154\" x2=\"677\" y2=\"2486\" class=\"loopLine\"></line><line x1=\"30\" y1=\"2486\" x2=\"677\" y2=\"2486\" class=\"loopLine\"></line><line x1=\"30\" y1=\"2154\" x2=\"30\" y2=\"2486\" class=\"loopLine\"></line><line x1=\"30\" y1=\"2325\" x2=\"677\" y2=\"2325\" class=\"loopLine\" style=\"stroke-dasharray: 3, 3;\"></line><polygon points=\"30,2154 80,2154 80,2167 71.6,2174 30,2174\" class=\"labelBox\"></polygon><text x=\"55\" y=\"2167\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"labelText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">alt</text><text x=\"378.5\" y=\"2172\" text-anchor=\"middle\" class=\"loopText\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\"><tspan x=\"378.5\">[Customer closes connection]</tspan></text><text x=\"353.5\" y=\"2343\" text-anchor=\"middle\" class=\"sectionTitle\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">[Sinch ends call]</text></g><text x=\"352\" y=\"127\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">WS connect request</text><line x1=\"76\" y1=\"158\" x2=\"628\" y2=\"158\" class=\"messageLine0\" data-et=\"message\" data-id=\"i1\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"218\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Accept connection</text><line x1=\"631\" y1=\"249\" x2=\"79\" y2=\"249\" class=\"messageLine1\" data-et=\"message\" data-id=\"i3\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"355\" y=\"309\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Non-success response</text><line x1=\"631\" y1=\"340\" x2=\"79\" y2=\"340\" class=\"messageLine1\" data-et=\"message\" data-id=\"i5\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-crosshead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"352\" y=\"489\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">ConnectRequest</text><text x=\"352\" y=\"507\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: connect}</text><line x1=\"76\" y1=\"538\" x2=\"628\" y2=\"538\" class=\"messageLine0\" data-et=\"message\" data-id=\"i11\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"664\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">AnswerResponse</text><text x=\"355\" y=\"682\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: answer}</text><line x1=\"631\" y1=\"713\" x2=\"79\" y2=\"713\" class=\"messageLine0\" data-et=\"message\" data-id=\"i14\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"773\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Close WebSocket (no answer)</text><line x1=\"631\" y1=\"804\" x2=\"79\" y2=\"804\" class=\"messageLine0\" data-et=\"message\" data-id=\"i16\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1067\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">TextMessage</text><text x=\"352\" y=\"1085\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: text}</text><line x1=\"76\" y1=\"1116\" x2=\"628\" y2=\"1116\" class=\"messageLine0\" data-et=\"message\" data-id=\"i25\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"1209\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">TextResponseMessage</text><text x=\"355\" y=\"1227\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: text}</text><line x1=\"631\" y1=\"1258\" x2=\"79\" y2=\"1258\" class=\"messageLine0\" data-et=\"message\" data-id=\"i29\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1416\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">PlaybackEvent</text><text x=\"352\" y=\"1434\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: textPlaybackStart|textPlaybackStop|textPlaybackCancel}</text><line x1=\"76\" y1=\"1465\" x2=\"628\" y2=\"1465\" class=\"messageLine0\" data-et=\"message\" data-id=\"i34\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1558\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">DtmfReceive</text><text x=\"352\" y=\"1575\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: dtmf}</text><line x1=\"76\" y1=\"1605.5\" x2=\"628\" y2=\"1605.5\" class=\"messageLine0\" data-et=\"message\" data-id=\"i38\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"1621\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">DtmfSend</text><text x=\"355\" y=\"1638\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: dtmf}</text><line x1=\"631\" y1=\"1668\" x2=\"79\" y2=\"1668\" class=\"messageLine0\" data-et=\"message\" data-id=\"i39\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"1806\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">InterruptDetect</text><text x=\"352\" y=\"1824\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: interrupt}</text><line x1=\"76\" y1=\"1855\" x2=\"628\" y2=\"1855\" class=\"messageLine0\" data-et=\"message\" data-id=\"i44\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"1915\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">Interrupt</text><text x=\"355\" y=\"1933\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">{command: interrupt}</text><line x1=\"631\" y1=\"1964\" x2=\"79\" y2=\"1964\" class=\"messageLine0\" data-et=\"message\" data-id=\"i46\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"355\" y=\"2204\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">WebSocket close</text><line x1=\"631\" y1=\"2233\" x2=\"79\" y2=\"2233\" class=\"messageLine0\" data-et=\"message\" data-id=\"i55\" data-from=\"CS\" data-to=\"SP\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line><text x=\"352\" y=\"2370\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, Arial, &quot;Liberation Sans&quot;, Arimo, Helvetica, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">WebSocket close</text><line x1=\"76\" y1=\"2399\" x2=\"628\" y2=\"2399\" class=\"messageLine0\" data-et=\"message\" data-id=\"i60\" data-from=\"SP\" data-to=\"CS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-39cebf1d01e392a0253338a9fbc7055e526f1e31e8c063f6b87dac113fb4eea7-arrowhead)\" style=\"fill: none;\"></line></svg>"},"children":["sequenceDiagram\n    participant SP as Sinch Platform\n    participant CS as Customer WebSocket Server\n\n    Note over SP,CS: WebSocket Connection\n    SP->>CS: WS connect request\n    alt WS accepted\n        CS-->>SP: Accept connection\n    else WS rejected\n        CS--xSP: Non-success response\n        rect rgb(255, 204, 204)\n        Note over SP,CS: Stream ended\n        end\n    end\n\n    Note over SP,CS: Session Start\n    SP->>CS: ConnectRequest<br/>{command: connect}\n    Note right of CS: First protocol message.<br/>Server decides to accept or decline.\n\n    alt Accepted\n        CS->>SP: AnswerResponse<br/>{command: answer}\n    else Declined\n        CS->>SP: Close WebSocket (no answer)\n        rect rgb(255, 204, 204)\n        Note over SP,CS: Stream ended\n        end\n    end\n\n    Note over SP,CS: Live Relay Loop\n    loop While call is active\n        rect rgb(240, 240, 240)\n        Note over SP,CS: STT (Platform to Server)\n        SP->>CS: TextMessage<br/>{command: text}\n        end\n\n        rect rgb(240, 240, 240)\n        Note over SP,CS: TTS (Server to Platform)\n        CS->>SP: TextResponseMessage<br/>{command: text}\n        Note left of SP: Multiple chunks allowed.<br/>A batch ends when isLast=true.\n        end\n\n        rect rgb(240, 240, 240)\n        Note over SP,CS: Playback Status (Platform to Server)\n        SP->>CS: PlaybackEvent<br/>{command: textPlaybackStart|textPlaybackStop|textPlaybackCancel}\n        end\n\n        rect rgb(240, 240, 240)\n        Note over SP,CS: DTMF (Bidirectional)\n        SP->>CS: DtmfReceive<br/>{command: dtmf}\n        CS->>SP: DtmfSend<br/>{command: dtmf}\n        end\n\n        rect rgb(240, 240, 240)\n        Note over SP,CS: Interrupt Handling\n        alt Speech detected during TTS\n            SP->>CS: InterruptDetect<br/>{command: interrupt}\n            alt Manual stop requested\n                CS->>SP: Interrupt<br/>{command: interrupt}\n            end\n        else No speech interruption\n            Note over SP,CS: Playback continues normally.\n        end\n        end\n    end\n\n    Note over SP,CS: Call End\n    alt Customer closes connection\n        CS->>SP: WebSocket close\n        rect rgb(255, 204, 204)\n        Note over SP,CS: Stream ended\n        end\n    else Sinch ends call\n        SP->>CS: WebSocket close\n        rect rgb(255, 204, 204)\n        Note over SP,CS: Stream ended\n        end\n    end\n"]}]},"headings":[{"value":"Voice Relay Stream Control","id":"voice-relay-stream-control","depth":2},{"value":"Connection Flow Diagram","id":"connection-flow-diagram","depth":3}],"frontmatter":{"seo":{"title":"Voice Relay Stream Control"}},"lastModified":"2026-08-31T13:48:15.000Z","pagePropGetterError":{"message":"","name":""}},"slug":"/docs/voice-2.0/api-reference/x-voice-relay/vr_connection_flow","userData":{"isAuthenticated":false,"teams":["anonymous"]},"isPublic":true}