[Asterisk-Dev] codec renegotiation and fax [was: codec negotiation issue]

[Kevin P. Fleming]

Daniel Bichara wrote:

> So, if we make Asterisk start a renegotiation we could change the codec 
> to G.711 during a call after we detected a fax. And we will not need to 
> implement T.38 to make fax work between IAX or SIP devices. Cool.

Yes, that is a possibility, but don't expect it to work very well; it 
certainly is no substitute for T.38, but the same technique could 
conceivably be used to switch between a voice codec and T.38 during a 
call, if such behavior was needed.