Skip to content
Last updated

The protocols and ports in the following table are necessary for the Sinch SDK Client to successfully make a call. This list should be used for reference for clients experiencing difficulties due to restrictive firewalls.

ProtocolPortTypeUsage
TCP443SignallingHTTP over TLS
UDP3478,19302MediaSTUN / TURN
UDP49152-65535MediaS(RTP) ICE (STUN)
UDP49152-65535MediaS(RTP) ICE (STUN/TURN)
UDP10000-60000Media(S)RTP