Do you already have the SIP bind under voice service voip?
voice service voice
 sip
  bind all source-interface FastEthernet0

On Wed, May 4, 2016 at 9:58 AM, Nick Barnett <[email protected]> wrote:

> I've never dealt with an authenticated SIP trunk before and I'm having
> some issues. I was wondering if anyone has had a similar experience. I
> already have 2 SIP trunks from ITSP-1 that do NOT require authentication.
> These are working fine and have been for years.
>
> We are adding ITSP-2 and their SIP service DOES require auth.  I've
> followed their integration guide (which left a lot to be desired) and their
> acceptance team is telling me my auth is coming from our private class A
> address.
>
> Our CUBE is in HA with an inside (10.x.x.x) and outside (public) IP
> address. They are seeing REGISTER messages sourcing the inside VIP.
>
> I was looking around for an auth BIND statement or something like that,
> but I haven't had any luck. Any pointers?
>
> Thanks,
> Nick
>
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