Re: OT: ICM "NIC" interface type

Many thanks guys - Carlos and Ravi,

Carlos: This is what I was looking for. Thats what I was after.

NICs are carrier dependent. Some are serial, some are IP, some might
have special purpose hardware.

I understand the concept of pre/post and translation routings but wasn't
sure what the F.... that NIC interface is as the frakin Housley training
material doesn't tell ya what interface is that.

Anyhow,

will continue studying it....everything else looks real easy frakin windows
based thing.
I'm not sure why Cisco is not porting it on a reliable platfarm e.g. Linux
or Sun.

frog

On Fri, Apr 24, 2009 at 4:31 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:

> NIC stands for Network Interface COntroller, but remember that ICM is
> telephony software (pre voip, if you will).
> So "Network" is the network like the last N in PSTN.
>
> And "routing" is call routing. ICM has a "prerouting" mode where it
> gets the call signal from the PSTN before the PSTN decides where to
> route the call to, and ICM can return a label that the PSTN in turn
> uses to decide call routing.
>
> When doing "postrouting" you get the switch to tell ICM "I received this
> new call" by some form of private channel, via a PG which serves as a
> medium.
>
> NICs are carrier dependent. Some are serial, some are IP, some might
> have special purpose hardware.
> And AFAIK, they are on the way out, since carriers bill prerouting
> and there are new ways to send the call to the right place nowadays.
>
> -Carlos
>
> Radioactive Frog @ 23/04/2009 10:23 -0200 dixit:
> > I was studying some doc on Cisco ICM and the manual doesn't tell what the
> > hell is "NIC" (not network interface card, it means something else) on
> ICM.
> > SRND keep saying that ICM "NIC" connects to PSTN for pre/post routing
> > scenario but what interface does this ICM "NIC" has /? - E1/Ethernet or
> what
> > ?
> > how does call flow works with it?
> > It's taking my sleep away. I have got headache already.
> >
> > Anybody ever came across this and be kind to explain?
> >
> > frog
> >
> >
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> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina

Blogs and organic groups at http://www.ccie.net
Received on Fri Apr 24 2009 - 21:42:07 ART