Full support for TCP?

Asterisk Asterisk Support
1

My smartphone can register with my asterisk (PIAF) server remotely (outside LAN) via TCP transport and can make calls.

However, I found 2 issues. These 2 issues will go away, either if I use UDP transport in the same setup or if I connect within LAN.

  1. When I press “end call” button, it takes 30s to handup.
  2. I can’t use G.722 codec.

I think asterisk supports TCP but it is limited compared with UDP. In my informal testing, the smartphone will not last a day over 3g connection if connected via UDP. OTOH, TCP connection can last 20+ hours a day. So TCP connection is a must for smartphones over 3g mobile data connection.

If asterisk wants to attract more mobile users (who would like to avoid expensive minute plans), it should support TCP fully.

2

How do you know that Asterisk is behaving incorrectly?

You’ve verified that your softphone’s operating correctly when using both UDP and TCP for signaling?