Send fax error

volga629

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#1
Hello Everybody!!!!

I installed elastix all trunk everything working perfect. I can received faxes, but sent not working IAXmodem is give this error all time. And search Google for last 2 days for solution, but nothing.

Any suggestions welcome...

Jul 11 19:01:41.14: [11891]: MODEM <Empty line>
Jul 11 19:01:41.14: [11891]: MODEM TIMEOUT: waiting for v.21 carrier
Jul 11 19:01:41.14: [11891]: <-- data [1]
Jul 11 19:01:41.14: [11891]: --> [2]
Jul 11 19:01:41.14: [11891]: DELAY 1500 ms
Jul 11 19:01:43.11: [11891]: TRAINING failed
Jul 11 19:01:43.11: [11891]: <-- [9:AT+FTH=3\r]
Jul 11 19:01:43.13: [11891]: --> [7]
Jul 11 19:01:43.13: [11891]: <-- HDLC<3:FF C8 DF>
Jul 11 19:01:43.13: [11891]: <-- data [3]
Jul 11 19:01:43.13: [11891]: <-- data [2]
Jul 11 19:01:44.23: [11891]: --> [2]
Jul 11 19:01:44.23: [11891]: MODEM input buffering enabled
Jul 11 19:01:44.23: [11891]: <-- [5:ATH0\r]
Jul 11 19:01:44.45: [11891]: --> [2]
Jul 11 19:01:44.45: [11891]: MODEM set DTR OFF
Jul 11 19:01:44.45: [11891]: MODEM set baud rate: 0 baud (flow control unchanged)
Jul 11 19:01:44.45: [11891]: STATE CHANGE: SENDING -> MODEMWAIT (timeout 5)
Jul 11 19:01:44.45: [11891]: SESSION END
Thank you in advance...
 

dicko

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#2
If you are using VOIP trunks and the inbound is fine, then for a first step make sure the the IAX2 extensions ONLY have an appropriate g711 codec enabled, u or a depending on where you are , anything else will fail dismally.

dicko
 

volga629

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#3
[RESOLVED] Re:Send fax error

Thank you for direction you the man.
Yes you right all solution was set proper codec for trunk and extension in my case for BabyTel Canada is ulaw alaw and g729.
Right now everything flying

B)
 

dicko

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#4
Re:[RESOLVED] Re:Send fax error

Then stick with ulaw, alaw is for the "rest of the world" it uses a different pre-emphasis/de-emphasis and can break faxes more than voice. You can leave g729 on the trunk for voice to save bandwidth if you have the licenses, limiting the fax extensions is sufficient.
 

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