[asterisk-users] ReceiveFAX G.711 + Realtime

[Cyprus VoIP]

Hello,

We're trying to receive G.711 (aLaw) faxes on the asterisk and convert 
them to tif. With T.38, we have several issues, so we are trying to use 
G.711, since the gateway is located in the same LAN, so there's no 
bandwidth/packet-lose issue.

We also use on the same Asterisk Real-Time process for the extensions.conf

My question:

Is the following syntax for disabling T.38 support correct?
vm*CLI>     -- Executing Set("SIP/Proxy-00000000", "t38pt_udptl=no")
vm*CLI>     -- Executing Set("SIP/Proxy-00000000", "SIP_CODEC=aLaw")
vm*CLI>     -- Executing Answer("SIP/Proxy-00000000", "")

The aLaw Set command is taken into consideration, because the SDP of the 
OK that follows these lines includes only codec 8, but when the 
ReceiveFAX command is executed, Asterisk immediately sends a T.38 reINVITE:
vm*CLI>     -- Executing ReceiveFAX("SIP/Proxy-00000000", 
"/var/spool/asterisk/fax/3/1261993891.0.tif")

I must be doing something wrong, but I'm not sure what :-(

Your help would be highly appreciated.

Thanks,

Andreas