libss7 & TransferCapability

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Hi,

I am running a SS7 link (libss7-1.0.2, dahdi-linux-2.0.0, 
asterisk-1.6.0.1) which works fine for voice calls, but I have 
encountered problems connecting to some fax machines.

It seems that these fax machines need an ISDN bearer capability of 
"0x9090A3 - 3.1 kHz Audio call (A-law)", but the ss7 link always signals 
"0x8090A3: Voice/Speech call (A-law)".

I have tried "Set(CHANNEL(transfercapability)=3K1AUDIO)" but without 
success. Looking at chan:dahdi.c I could not find a reference to the 
ast->transfercapability (except for a check with the IS_DIGITAL macro).

Is there a way to signal 0x9090A3?

regards,
Andreas




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