[sr-dev] The SIP TLS/ALPN identifier is now registred

[Olle E. Johansson]

I’ve finally got confirmation that the SIP ALPN identifier is registered.

https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids

For Kamailio, this could assist when we multiplex multiple protocols on the same port, like we do for HTTPs and SIP/TLS many times. 

ALPN Is part of the TLS handshake, indicating what protocol comes after TLS is done.

For it to help, both phones and servers needs to support it. I do think it would be helpful. 

Cheers,
/O