[c-nsp] cisco IAD

[Bruce Pinsky]

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Mark Kent wrote:
> Hello,
> 
> For some reason, I believed that a cisco box existed that did this:
> 
> Allowed me to take this setting:
> 
>  {proprietary phones}<-->{IP-unaware PBX}<--T1/PRI-->{PSTN}
> 
> to this setting 
>   
>  {proprietary phones}<-->{IP-unaware PBX}<--T1/PRI-->[cisco]<--T1/PRI-->{PSTN}
>                                                        |
>                                                        |->{VoIP}
> 
> That is, something you drop in between the PBX and the PSTN and
> it can then siphon off certain outbound calls to go out over VoIP.
> 
> Despite my belief, all I find are the cisco iad2430/31/32 series and
> they seem to have only half the required ports.  That is, they only
> have one voice T1 port, where I'ld need two (one for the PBX, one for
> the PSTN).
> 
> Likewise, even for a small site with, say, 8 lines, I'ld need 8-fxo and
> 8-fxs, but they don't seem to have it.  Note, a 16-fxs system wouldn't do here.
> 
> So, am I dreaming, or looking at the wrong place, 
> or misunderstanding some fundamental?
> 
> The goal here is to introduce some voip capability without changing
> the desktop.
> 

I think you want to be looking at voice modules for the
2600/2800/3600/3700/3800 routers.  I believe you would be able to do as you
indicate or you could hang the router off the PBX and change its dial plan
to redirect certain calls to the router for VOIP.

Check out the Analog Voice Interface cards for FXS and FXO type trunks and
the High Density Digital Voice Network Modules for T1/E1 applications.

Also take a look at cut sheet at
http://www.cisco.com/en/US/products/ps5855/products_data_sheet0900aecd80169812.html
which gives some examples of toll bypass applications.

- --
=========
bep

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