[asterisk-users] FAX thru TDM400p

[Gordon Henderson]

On Fri, 6 Apr 2007, Joe Acquisto wrote:

> AFAIK, the FAX targets are normal FAX machines, on the PSTN.
>
> What happens is, there appears to be a dial out, and a FAX negotiation, 
> but it always fails.

I think what Bryan is asking: Where is your FAX source? If the sending 
system is coming in on another port on the TDM card then fine, if it's 
coming in via the Internet (SIP, IAX) then it's going to be variable at 
best...

Gordon


  >
> joe a.
>
> "Bryan M. Johns" <bryan at sheltonjohns.com> Wrote: 4/6/2007 8:49 AM:
>> Is your carrier delivering service via a TDM circuit?
>>
>> It has been our experience that you will get far more reliable fax
>> performance via the method you describe (analog device terminated to
>> a port on a FXS line card) than attempting to use an ATA on the LAN.
>> However, if your carrier is a SIP or IAX trunking provider, your
>> reliability concerns are on the other side of your SIP switch.
>>
>> Bryan Johns
>> Partner
>>
>> Shelton | Johns
>> 1805 Old Alabama Road
>> Suite 200
>> Roswell, GA 30076
>> USA
>> Office: 678.248.2637
>> FindMe: 678.229.1809
>> Email: bryan at sheltonjohns.com
>>
>>
>> On Apr 6, 2007, at 8:39 AM, Joe Acquisto wrote:
>>
>>> There seem to have been many discussions about this, so sorry if
>>> this is boring.
>>>
>>> Can one connect a "standard" fax machine (or fax modem) to an
>>> analog port on a TDM400p (as if it were an analog phone, say) and
>>> expect it to work reliably?
>>>
>>> For sending, that is.  Detecting and "routing" the call is another
>>> subject (for me).
>>>
>>> Seems it "should", but does not.  At least not for me.
>>>
>>> joe a.
>>>
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