CME to ITSP SIP

[Precious]

Hi Cisco Family,

I have a CME with 2 registered 7911 phones, 

Everything is working as its supposed to but we are no able to make outgoing calls. incoming calls are working fine.

when I do debug ccsip messages command, I keep getting :

sip/2.0 403 forbidden authentication failure even though my SIP trunk is registered.

Attached are my CUBE configuration 

[marcfuhrmann]

Hi,

I am missing the bind command in your configuration:

You can use something like this:

bind control source-interface GigabitEthernet0/0.300
bind media source-interface GigabitEthernet0/0.300

With a newer image you can use "tenant" for multible sip provider and make the bind command under each tenant.

I use this image:

c2900-universalk9-mz.SPA.156-3.M7.bin

Hope this helps.

Marc

[Precious]

Hi, thanks for the reply, I am binding ITSP voip dial-peer to G0/2

[j.huizinga]

The your caller-ID, providers check on caller-id, mostly providers check caller-ID for security and billing