[Asterisk-Users] What small PC can take 8 FXS + 8 FXO cards

[ht at phonitel.com]

Thanks very much for this info Andrew.



Selon Andrew Kohlsmith <akohlsmith-asterisk at benshaw.com>:

> On April 25, 2005 07:39 am, ht at phonitel.com wrote:
> > I would like to setup a 8 FXS + 8 FXO interface using the X100P Cards. The
> > problem now comes in the PCI ports. Is there any PC that can handle 16
> > ports?
> >
> > What is most optimal solution?
>
> The most optimal solution would be a TE110P + a channel bank.  The TE110P is
> about US$500 and a channel bank with 8FXS and 8FXO (with option to expand to
> 8 more ports) will run probably US$700-1000 on ebay.
>
> There is 1 PCI card in your computer and a piece of external equipment (the
> channel bank).  You could go with 4 TDM400Ps to get the same number of ports
> but you will undoubtedly have trouble with sharing IRQs and the interrupt
> overhead is going to eat you alive.
>
> Channel banks are great; the better ones (Adit600) can do far-end disconnect
> supervision and I think pretty much all of them do dynamic impedance
> adjustment, meaning they're FAR less prone to echo.  Just about anyone's FXS
> modules work, but be careful with FXO modules on channel banks.  Access Bank
> I and IIs do *NOT* do far-end disconnect, meaning if someone on the other
> side hangs up, Asterisk won't be able to tell.
>
> -A.
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