## ConnectRequest

#### Payload Schema

- **command** (string, required)
Connect message
- **version** (integer, required)
Protocol version
- **callId** (string, required)
Unique Call ID
- **serviceId** (string, required)
Service Unique ID
- **sttLanguage** (string, required)
BCP-47 language tag used for speech-to-text transcription of the inbound audio.


This is the language set in the SVAML command when the voice relay session was initiated.

- **ttsVoice** (string, required)
Name of the default voice that will be used when synthesizing speech.


This is the TTS voice name set in the SVAML command when the voice relay session was initiated.

- **interruptionsEnabled** (boolean, required)
Indicates if automatic interruption on detected speech is enabled for this session.
- **callHeaders** (object, required)
Arbitrary key/value pairs (header name -> header value).