[Asterisk-Users] fax receive using TDM400P

[Anton Krall]

Well, I have the same effect on my TDM as in the E1 using unicall... Faxes
get here as garbage :( 

|-----Original Message-----
|From: asterisk-users-bounces at lists.digium.com 
|[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
|Rich Adamson
|Sent: Friday, February 24, 2006 7:28 AM
|To: Asterisk Users Mailing List - Non-Commercial Discussion
|Subject: Re: [Asterisk-Users] fax receive using TDM400P
|
|> Ive been testing how to receive faxes using TDM400P cards 
|and so far, 
|> after playing with gains, echocancell and echotraining on 
|> zapata.conf.. Ive ha dno luck, faxes come in as garbage or 
|broken or with blank lines.
|> 
|> Anybody has successfully done this? Any tips.. Also I have 
|some ideas:
|> 
|> 1. Is it really possible to get fxes on a fax machine using 
|ATAs like 
|> the sipura 2002? Even using ulaw and pass-thru, is it possible?
|> 
|> 2. Since the faxes is coming from PSTN thru the card, I 
|guess asterisk 
|> will always stay in the middle right? No way around this.
|> 
|> 3. Im also trying to receive faxes usign a TE110P card with spandsp, 
|> unicall and E1 R2MFC, no luck also, some stuff, garbage and broken 
|> faxes. Anybody done this sucessfuly?
|> 
|> Hope anybody can share their thoughts and insight on this.
|
|Using the TDM400 card for any form of fax'ing (or modem use) 
|is well known to be unreliable and, in most cases, totally 
|unusable. The issue has been discussed many times over the 
|last two years or so. There are no known workarounds.
|
|Its my understanding that lots of folks have spandsp working 
|via T1 and/or PRI interfaces. The issues associated with the 
|TDM400 card do not apply to the T1 cards.
|
|
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