Hi Folks

  I've got callweaver T38 faxing through openser, then onto the pstn via 
a callweaver pstn gateway. This works just fine both ways from 
callweaver, to our analogue pstn connected fax and back again.

  The problem is we have another office, running cisco call manager 
express. They can receive T38 faxes just fine. However when they send, 
the sip trace looks good, but the T30 (audio tones) handshaking over the 
PSTN seem to fail I think. The call is established, I see rtp traffic, 
then the call drops shortly afterwards.

  How can I get some more debug from the system?

  -Cheers Max
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