[asterisk-users] Asterisk 1.6 T.38 generation towards a Ciscovoice router

[David Backeberg]

On Wed, May 13, 2009 at 9:21 AM, Jon Schøpzinsky <jos at firstcom.dk> wrote:
> I used wireshark to debug the problem, and I can see that the cisco equipment is correctly sending t.38 packets to asterisk, and the whole re-invite process is successful.
> The problem is, that Asterisk discards the t.38 packets with the error message I sent, and therefore the T.38 session never gets underway. Asterisk is stuck on the same SEQ id, as it never receives anything from the cisco.
> Ive also checked that this isn't a network issue. The packets are coming through, asterisk just throws them away with the error message I described.

Does any SIP traffic of any kind work properly between the machines?
How about a simple voice phone call?

Sending an audio fax over SIP would be a good test.
Posting the Cisco dialpeer config would also be helpful.