Hi John, FYI Sangoma has a USB 2 port FXO (U100) which I have found to work
well with Asterisk.

On Tue, Oct 11, 2011 at 4:02 PM, John Van Ostrand <[email protected]> wrote:

> Hi,
>
> We are struggling with a Cisco (nee Sipura) 8800. It's not capturing DMTF
> reliably on inbound calls to our automated attendant (asterisk) and it
> happens only with certain callers and never with other callers. The first
> one, two or three digits will be missing so a caller pressing 5102 could get
> option 1, 0 or 2 instead of my extension. It also is more reliable when
> callers wait for silence between prompts before dialling. Flipping between
> AVT and inband doesn't change much. We gained better reliability by reducing
> the gain on the outgoing audio. When AVT is configured, we can see missing
> SIP event packets and the 8800 doesn't log the digit either so it's clear
> that it's just unable to recognize the tones.
>
> Is the 8800 reliable? What is a good solid ATA? What about a Mediatrix
> 1204? Any other suggestions? We need a 4 port FXO ATA.
>
> Thanks,
>
> --
> John Van Ostrand
> CTO, co-CEO
> Net Direct Inc.
> 564 Weber St. N. Unit 12, Waterloo, ON N2L 5C6
> Ph: 866-883-1172 x5102
> Fx: 519-883-8533
>
> Linux Solutions / IBM Hardware
>
>
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-- 
* Henry Coleman*
[image: Picture]

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