[c-nsp] Configured Loopback 0; now we have one-way voice?

[Tim Jackson]

Sounds like you're sourcing RTP from a port that the far end can't send to
(maybe that loopback isn't reachable from your end points?) Even outside of
that, there are a ton of bugs with IOS determining how it binds to an
audio/signaling port for MGCP and SIP, but it definitely could help to use
the bind control & bind media commands (this is if you're using SIP):

voice service voip
 sip
  bind control source-interface FastEthernet0/0
  bind media source-interface FastEthernet0/0



On Wed, Apr 30, 2008 at 9:18 AM, Jeff Cartier <jcartier at acs.on.ca> wrote:

>
> Hey Everyone,
>
> My familiarity with voice is very limited...So I ask this question :)
>
> We've been configuring loopback interfaces on our voice gateways in order
> to use the loopbacks for management purposes.  We've noticed that when we
> configure loopback 0 we then get users complaining of one-way
> conversations...
>
> Any thoughts?
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