[Asterisk-Users] An FXO version of IAXy?

[Andrew Latham]

Also note the use of FXO for Overhead Paging needs.  Most all systems
from Valcom, Bogen and some others are C.O. Line only and the line
converter can cause huge delays in broadcast..


On 3/19/06, Rich Adamson <radamson at routers.com> wrote:
> > In the interest of Symmetry, does anyone else in the world see any need
> > for a device like the IAXy (or the SIP ones from other manufacturers,
> > like the ATA186), but one that presents an FXO interface instead, so it
> > can be connected not to phones, but the PSTN?
>
> There's a hugh market for such a box, and none of the current
> manufacturers have addressed the one-to-four pstn line boxes with
> anything that would be considered reasonable quality. The GS 488 appears
> to be their 'test-the-market' box, but its not very usable based on my
> testing. The Mediatrix 1204 does an excellent job with audio, but is
> over-priced and under-supported from my perspective.
>
> The spa3k comes the closest to providing a reasonable interface with
> acceptable audio, but has several functions that really need to be
> fixed. I hope the Linksys folks address those issues instead of dropping
> the box.
>
>  From my perspective, designing a fxo box that can interface to the many
> country standards and has a reasonable echo canceller is not an easy
> task. Much more difficult than designing a fxs box. And, if you look at
> the cost of the hardware echo canceller chips that can support 128 taps,
> the manufacturing cost of a fxo box becomes rather expensive.
>
> If you look at the market from a manufacturer's perspective, the sales
> of fxo boxes are significantly less then the sales of fxs boxes.
> Therefore it makes sense what the majority of them are doing from an R&D
> and manufacturing perspective (eg, address the larger market before
> incurring the expense of the smaller market).
>
>
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Andrew Latham - AKA: LATHAMA (lay-th-ham-eh)
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