Cannot Fax with FPL

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jtan:
Hi

Cannot fax out using FPL (FreePhoneLine) keep getting com E-3 error.
Sharp UX-190 fax

Is there any special configuration need to be done on OBi200 ?

Thanks

SteveInWA:
I haven't tried FPL.  In general, the service provider needs to support (and you must configure it to select, as your first choice) the G.711a or G.77u CODECs, not G.729 or any other CODEC.  You also need to set the fax machine to a maximum speed of 9600bps, with error correction turned off..  You need a clean, reliable internet connection, with no file sharing, video gaming or video streaming going on at the same time.  The OBi should be connected by an Ethernet cable, not WiFi.

If you are set up that way, and it still fails, then you should try some other internet telephone service provider.

azrobert:
See:
http://www.obitalk.com/forum/index.php?topic=6625.msg41922#msg41922

I wouldn't turn off error correction. I currently use GV for fax without problems. Before I switched to GV, faxing for me was inconsistent. Turning off error correction did improve the success rate, but during testing I would sometimes get lines of garbage in the fax.

I suggest using your GV account for faxing.

SteveInWA:
Error correction can definitely be a problem with VoIP faxing, as it's a primitive technology that tells the fax to re-transmit blocks of the image data (as opposed to using a mathematically-computed re-construction of valid data).  On a less-reliable VoIP connection, it will just result in endless attempts to re-transmit data, resulting in either a very long elapsed time to send a fax, or a complete failure.

http://support.hp.com/us-en/document/c00060802

For minor, momentary line quality problems (as on an old-fashioned analog POTS loop), ECM can be useful, but on a VoIP call, excessive jitter or dropouts can cause ECM to do more harm than good.

That's why it's commonly recommended to be disabled when faxing over VoIP.

jtan:
@ Robert and @ Steve

Thanks for your suggestions.   

Somehow still cannot get FPL to work but GV works with my 1990 old Sharp UX-190 fax machine  ;D

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