[VoIP] Decadic Savvy ATAs

[Mark Rudholm]

The Digium IAXy  (http://www.digium.com/en/products/analog/s101i.php)
supports pulse, but it's IAX only (no SIP).  That's fine with me though,
since I only use ATAs with Asterisk.  It also supports CPC on both placed
and received calls (the Sipuras only do CPC on received calls).  The
Motorola ATAs do/did as well, although those were hard to find in an
unlocked state (I had a locked one and it went in the trash).

The Digium PCI FXO/FXS cards also support pulse dialing.  (I currently
have one for sale).

OpenWRT only runs on a limited number of processors last I looked at
its hardware compatibility list.  (A number of us run it, some of us
even run Asterisk on it).  Seems like just using an IAXy would be by
far the easiest solution.

Jack Ryan wrote:
> Hello List,
> 
> I have just joined this list so I have some catching up to do. While I do
> that, I would like to ask a question.
> 
> (Just to synchronise terminology, decadic dialling = pulse dialling = rotary
> dialling = loop disconnect dialling)
> 
>  I have been looking for ATAs that accept decadic dialling and I have come
> to the conclusion that there are very few and that decadic dialling is not
> high on the average ATA designer's mind. While looking around I have
> noticed:
> 
> 
>    - A particular router/VoIP gateway understood decadic dialling
>    - A firmware upgrade removed this capability
> 
> This leads me to believe that at least some devices have software
> (firmware) control over decadic dialling. After hunting around I found that
> VoIP/SIP services are provided by chips such as those made by Zarlink
> Semiconductor ( http://www.legerity.com/products.php?cid=&sid=1&bpid=33).
> The problem at the moment is that I don't have access to the data sheets so
> I can see if decadic dialling is supported.
> 
> There is an open source community that supports an embedded Linux for
> routers etc called OpenWrt. This project plus a chip that supports decadic
> dialling = heritage phones on line.
> 
> Does someone in the CNET community have access to this data? Has someone
> already been down this road?
> 
> Thanks
> 
> Jack
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