Re: [hylafax-users] Fax --> Asterisk --> PSTN --> Asterisk --> Hylafax = High consecutive bad lines

To: Joseph <syscon@xxxxxxxxxxxxx>
Subject: Re: [hylafax-users] Fax --> Asterisk --> PSTN --> Asterisk --> Hylafax = High consecutive bad lines
From: Lee Howard <faxguy@xxxxxxxxxxxxxxxx>
Cc: hylafax-users@xxxxxxxxxxx
Date: Tue, 02 Sep 2008 04:56:59 -0700

Joseph wrote:

I run the second test today and I think the problem is still there but I think it is delay on my end. When the stand along machine (behind asterisk) sends a fax on my end Sipura is configured to pass call through (so the call is not going through asterisk) but I still get this error:

The full document was not received because: Unspecified Phase C error, including too much delay between TCF and +FDR command

You really cannot expect reliable results from faxing over VoIP segments (sometimes even if it is just SIP over your LAN). See:

http://hylafax.sourceforge.net/docs/fax-over-voip.pdf

The reason that faxing to/from fax machines is probably due to those fax machines supporting ECM whereas your Class 2 modem does not.

Thanks,

Lee.


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- Re: [hylafax-users] Fax --> Asterisk --> PSTN --> Asterisk --> Hylafax = High consecutive bad lines
  - From: Joseph

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