[Asterisk-Dev] Multiple ports for SIP listener + minor bug

[John Todd]

This is a point of minor inconvenience: is it possible to get 
chan_sip to listen on multiple ports?  I have an instance where a 
phone is blocked from using port 5060 (well, not blocked, but 
"inappropriately translated" by a PIX) and I'd like to simply skip 
around the offending firewall with a different port number.  However, 
at this point that seems to require Asterisk to be launched in a 
different thread with "port=" set in sip.conf, which seems to be a 
bit of overkill.   A better method would be to have a comma-separated 
list of ports that SIP requests would be transmitted/received on.

PS: Line 1808 of chan_sip.c seems to hardcode 5060 as the port, even 
though there is a #define at the top of the file that lists the 
"default" port for SIP in a more flexible default manner.

JT