[VoiceOps] T38 over Sip

[Kevork Belian]

Disable ECM on Cisco gear (AS5400 and the exit gateway of PGW). 
You can disable ECM on the fax machine also.


-----Original Message-----
From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Junaid Hattia
Sent: Friday, August 28, 2009 3:03 PM
To: Alex Balashov
Cc: voiceops at voiceops.org
Subject: Re: [VoiceOps] T38 over Sip

Attached is a call flow....

The basic prolem is that a fax call cannot be completed...


On 2009/08/28 1:29 PM, "Alex Balashov" <abalashov at evaristesys.com> wrote:

> There are many things that could be wrong there.  Problem description 
> is not sufficient.
> 
> Junaid Hattia wrote:
> 
>> Howdy
>> 
>> Ok so im trying to t38 over sip working with no luck
>> 
>> My test lab is as follows:
>> 
>> Pangea box connecting to a AS5400 via PRI, which then traverses an 
>> Acme Session director, broadsoft and then exits via PGW(SS7)
>> 
>> The sniffer capture says ³failure to train²
>> 
>> 
>> Any ideas?
>> 
>> --
>>  junaid
>> 
>> 
>> 
>> 
>> 
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