I'm sure it won't work because we only implemented forwarding t38 with invite it would require adding code to say the least. On Fri, Oct 16, 2009 at 9:35 AM, Peter P GMX <Prometheus001@gmx.net> wrote:
Hello Michael
this is a productive system, so I can currently not update to the current trunk. But the installed SVN is 14741. Were those changes after 14741? Then I'll try to find a timeslot at night in order to update freeswitch.
But Freeswitch should forward the UPDATE request in proxy-media mode, right?
Best regards Peter
Michael Jerris schrieb:
There was just a bunch of work on UPDATE, can you confirm this is the same behavior with trunk?
On Oct 14, 2009, at 6:55 AM, Peter P GMX wrote:
Hello,
we have the following problem. 2 Fax machines are communicating via Freeswitch. One is externally attached via a Telco who is able to handle T.38. The other one is attached locally.
When 2 Fax machines start syncing each other, the Telco sends a SIP UPDATE message with T.38 SDP, as it detects fax during the fax negociations. Freeswitch answers with an SIP OK message back to the telco, and I can see the T.38 SDP on the debug console of freeswitch. Then nothing happens any more until one of fax machines detects timeout.
We have set proxy-media to true. However is was done during call setup when both machines communicated with G711 SDP. The UPDATE message was commited by FS to the telco, but was not sent to the other fax, so I think in this case Freeswitch is supposed to transcode between T.38 and G711 which it cannot do, as we know.
How can I overcome this scenario? Is this a defect, should freeswitch send the UPDATE message to the other fax? Or is there a workaround?
Best regards Peter
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