[cisco-voip] Setting up a SIP trunk...anything special?

[John Osmon]

On Thu, Jul 31, 2008 at 02:36:50PM -0400, Lelio Fulgenzi wrote:
> I am setting up a SIP trunk to a Cistera appliance (I believe they are
> using asterisk) in order for the box to dial out. The SIP trunk setup
> went fine and without incident. Is there anything else I need to do?
> Someone mentioned to me a while back that I would need something else
> like a transcoder.

Make sure you test to ensure that the appliance is the only thing
allowed to make outbound calls.  We had an older system that accepted
SIP calls from *anywhere* when the SIP trunk was created.  A quick 
patch fixed the issue, but it certainly wasn't the behavior we (or
Cisco) expected at the time.