https://community.sinch.com/t5/In-App-Voice-Video/Does-the-Sinch-SDK-work-behind-symmetric-NATS/ta-p/7366 <DIV class="lia-message-template-content-zone"> <P>The Sinch SDK will use P2P for the voice stream when possible. The ICE protocol is used for NAT traversal. If a P2P channel is not possible (for example when both sides are behind a symmetric NATs) the voice channel will fall back to Sinch media proxies. Approximately 70-75% of the calls made with the SDK can be expected to go over P2P, while approximately 25-30% of the calls can be expected to go through servers. This is due to firewall restrictions.</P> <P>&nbsp;</P> <P><SPAN><EM>Visit the </EM></SPAN><A href="https://www.sinch.com/products/apis/calling/data/" target="_blank" rel="noopener"><EM>In-App Voice Calling</EM></A><SPAN><EM> product page to learn more about Sinch’s In-App Voice calling products.</EM></SPAN></P> </DIV> Thu, 23 Feb 2023 10:00:16 GMT Roland_Ian 2023-02-23T10:00:16Z https://community.sinch.com/t5/In-App-Voice-Video/Does-the-Sinch-SDK-work-behind-symmetric-NATS/ta-p/7366 <DIV class="lia-message-template-content-zone"> <P>The Sinch SDK will use P2P for the voice stream when possible. The ICE protocol is used for NAT traversal. If a P2P channel is not possible (for example when both sides are behind a symmetric NATs) the voice channel will fall back to Sinch media proxies. Approximately 70-75% of the calls made with the SDK can be expected to go over P2P, while approximately 25-30% of the calls can be expected to go through servers. This is due to firewall restrictions.</P> <P>&nbsp;</P> <P><SPAN><EM>Visit the </EM></SPAN><A href="https://www.sinch.com/products/apis/calling/data/" target="_blank" rel="noopener"><EM>In-App Voice Calling</EM></A><SPAN><EM> product page to learn more about Sinch’s In-App Voice calling products.</EM></SPAN></P> </DIV> Thu, 23 Feb 2023 10:00:16 GMT https://community.sinch.com/t5/In-App-Voice-Video/Does-the-Sinch-SDK-work-behind-symmetric-NATS/ta-p/7366 Roland_Ian 2023-02-23T10:00:16Z