[cisco-voip] Re: Fax Relay/Passthrough used for pots to pots FAX calls?

[Wes Sisk]

Hi Erick,

Even between 2 parts card on the same router the traffic is packetized.  
There is only one nm card that has a TDM backplane that would avoid 
packetization.  Sorry, I cannot come up with the name of that card just now.

/Wes

Erick Bergquist wrote:

>Hi,
>
>I'm getting mixed answers on if FAX relay or
>passthrough are used for pots to pots FAX calls.
>Example, a call that comes in the PRI and goes out FXS
>(NM-HDA) on same router to a FAX machine.
>
>I have a intermintent FAX issue now (briefly described
>here a few days ago) and am being asked to do a 'fax
>rate disable' by TAC on the pots dial-peers. With this
>command, it completely kills fax calls so we got to
>put it back to what it was - fax rate voice. Any idea
>why this would break FAXs between 2 pots peers? 
>
>Thanks
>
>
>
>
>
>		
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