[asterisk-users] different codec for different extensions

[Nasir Iqbal]

Hi All,

I am wondering that how I can setup different codec for different
extensions in my dial plan.

scanario will 

when user X (Sip) call 111 extension in default context. The Asterisk
response should be in GSM codec

When user X (Sip) call 222 extension in default context. the Asterisk
response should be in G711 Codec

Actually I want to setup an extension for FAX receiving (rx_fax) and
other for IVR. when your call FAX extension the codec will be G711 and
when user call IVR the codec must be GSM


Please help me


Thanks 

Nasir Iqbal