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#562294 12/05/13 02:21 PM
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Was told by provider T.38 fax transmission must be enable.First what field is it and and anyone else came across this problem.Fax using port off switch with sip trunks.


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dell #562303 12/05/13 03:45 PM
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First, even with T.38 if you don't have a dedicated circuit to your sip provider you are wasting your time if it's over the open internet. Save yourself the heartaches and get a POTS for the fax OR use a service to email/send them to you.

Last edited by Coral Tech; 12/05/13 03:46 PM.
dell #562304 12/05/13 03:54 PM
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Ditto. I've never seen faxes work correctly with SIP providers.

dell #562305 12/05/13 04:34 PM
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Dell. T.38 fax is set in PRG 84.13.50 and 51. Like Deltron and Coral Tech say T.38 is a hit and miss technology from what Ive seen down here..


Regards,

Paul W
Now back to a 0 day week. Love these 7 day weekends.
dell #562310 12/05/13 06:50 PM
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I've done ok with the 711 codec.


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