[c-nsp] cisco IAD

[Mark Kent]

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.

Thanks,
-mark