[c-nsp] Can an AS5350 route ISDN calls to ISDN?

[Andreas Sikkema]

Alex Balashov <abalashov at evaristesys.com> wrote on 16-07-2008 18:21:50:

> Andreas Sikkema wrote:
> 
> > We're using a Cisco AS5350 as a SIP <-> ISDN PRI gateway. Normally we 
> > route calls from the incoming ISDN line to a SIP server (and vice 
versa). 
> > Currently we're wondering if we can route calls coming in from a 
specific 
> > ISDN line to another ISDN line directly without having to go through a 
SIP 
> > server. 
> 
> The answer is yes.

Cool! So I just match the incoming calls from a specific ISDN interface 
and send them out through another. Are there any caveats I should know? I 
can't match specific dialled or dialling numbers, currently there's over 
2000 DID's in use on these lines.

> What it *cannot* do is hairpin VoIP calls (in VoIP, out VoIP).  But it 
> can cross-connect TDM.

Oh, that's no problem, I only want to hairpin TDM.

Thanks!

-- 
Andreas Sikkema