[Asterisk-Users] T.38 fax with SIP devices

[Michael D Schelin]

I'm a Voip carrier and we support T38 calls. If you need T38 Faxing 
Please contact me

sales at shelltel.com

Mike

Steve Underwood wrote:

> Asterisk needs more than to just allow T.38 as a codec type. T.38 only 
> recently gained an RTP option, and very few things support it so far. 
> You need to have a UDPTL transport for most boxes supporting T.38. I 
> have a working UDPTL for *, but it needs more polishing before release.
>
> Regards,
> Steve
>
>
> Mark Dutton wrote:
>
>> Right you are Michael.
>>
>> I have some Multitech MVP200s and they do work indeed. Only problem 
>> is mine
>> are too old to do SIP. I know Asterisk does not do T.39 but as it 
>> only needs
>> to ALLOW the codec when devices are communicating with each other, it 
>> can't
>> be too hard to get working. Perhaps the t39fax codec needs to be 
>> added to
>> the Asterisk codec list so it knows about it and then it can be added 
>> to the
>> allow list in SIP.
>>
>> Mark
>>
>> Date: Thu, 07 Apr 2005 21:17:03 -0700
>> From: Michael D Schelin <mike at shelcomm.com>
>> Subject: Re: [Asterisk-Users] T.38 fax with SIP devices
>> To: Scott Wolfe <scottwolfe at orbus.net>,    Asterisk Users Mailing List -
>>     Non-Commercial Discussion    <asterisk-users at lists.digium.com>
>> Message-ID: <425605BF.1080908 at shelcomm.com>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Hello, The Multitech VOIP line supports T38 and I have tested it. It 
>> works
>> great.  You will need a public IP to make it work. Very expensive 
>> though.
>> T38 Is not compatible with Asterisk.
>>  
>>
>
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