[Asterisk-Dev] Help with integrating EVRC codec into Asterisk

[gourij at qualcomm.com]

We have been playing around with asterisk code to integrate EVRC codec into 
Asterisk.  Since EVRC encoding of current frame dependents on previous 
frames, it is necessary to pass some call-id kind of information into the 
codec.  From a quick look, it seems like the call-id info is not sent 
outside of chan_sip.  How does it work for other non-frame-independent 
codecs in Asterisk?

Appreciate if someone can shed some light or show some pointers for me to 
get a quick start.

Thanks,
gj