[Asterisk-Users] FAX, IAX and *....Maybe I'm dreaming...:-)

[Steve Underwood]

Walker Haddock wrote:

>On Mon, Dec 15, 2003 at 05:06:57PM +0200, Dan wrote:
>  
>
>>Hi,
>>
>>    
>>
>>>----- Original Message ----- 
>>>From: "Walker Haddock" <whaddock at datacrest.com>
>>>
>>>Dan, you say fax works better on the TDM400 than the ATA186.  I'm having
>>>      
>>>
>>problems with faxing on the TDM400.
>>    
>>
>>>I had to drop the rx and tx rates on the fax machine down to 4800 baud to
>>>      
>>>
>>get it to work.  I have ordered an ATA186
>>    
>>
>>>to see if I get better results.
>>>
>>>      
>>>
>>I have tried with several fax devices and have no problem with TDM400
>>/X100P.
>>
>>    
>>
>>>What rx and tx rates are you able to get to work through these devices?
>>>      
>>>
>>The default 9600 one.
>>    
>>
>
>I tried 9600, most of the time the fax would auto negotiate this but it would get too many bad lines and cancel.
>
>  
>
>>It can be a problem of X100 tuning for your provider line.
>>    
>>
>
>I'm usint a T1 PRI through a T100P for the other channel in the connection.  I have disabled all echo cancel.  I don't see how it can be caused by anything but hte TDM400.  I'll go ahead and test with the ATA and see if I get better results.
>
>  
>
>>If it does not work on TDM400, then for sure it will not work on ATA, in my
>>opinion.
>>    
>>

Its probably frame slips. Check the clock source for your T1, and make 
sure you are syncing to the PSTN.

Regards,
Steve