[Asterisk-Users] fax receive using TDM400P

[Administrator TOOTAI]

Anton Krall a écrit :

>Why is iaxmodem with hylafax more stable than spandsp?
>
>Can you run iaxmodem and hylafax together with spandsp (for running E1
>r2mfc)? 
>  
>
You're mixing thinks: iaxmodem+hylafax is equivalent to rx_fax/tx_fax, 
both are based on spandsp which is the library.

>|-----Original Message-----
>|From: asterisk-users-bounces at lists.digium.com 
>|[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Rob Danz
>|Sent: Friday, February 24, 2006 9:34 AM
>|To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
>|Subject: RE: [Asterisk-Users] fax receive using TDM400P
>|
>|I wrestled with this for a long time, as have many others and 
>|it just doesn't work with spandsp and asterisk alone.
>|
>|Use iaxmodem and hylafax in conjunction with asterisk... it 
>|works like a champ.  I have a single POTS line coming in so I 
>|get voice & fax with a single number using fax detect.  
>|
>|http://iaxmodem.sourceforge.net/
>|
>|
>|
>|-----Original Message-----
>|From: Rich Adamson [mailto:radamson at routers.com]
>|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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