[Asterisk-Users] Asterisk PBX Functions via SIP phone

[Chris Shaw]

> I am suprised that one would have to create a dialplan since its an
already built in function that works with regular POTS phones. Or is it
because of the way DTMF is sent via SIP?

I don't know digium's long range plans, but looking through chan_sip.c NONE
of the vertical service codes are mentioned anywhere... A quick look through
chan_zap reveals all of them... So for right now it's not implemented in
SIP...

-Chris