[cisco-voip] Sip Trunk - CUCM and Third-party PBX

[Roger Wiklund]

Username and password does not necessarily mean REGISTER unless they
specifically said so of course.

Proxy authentication is another way to authenticate with
username/password. That you can configure under "User Management ->
SIP Realm"

When you place an outbound call to the third-party PBX they will
respond with 407 (Proxy Authentication Required) and include a SIP
Realm.
CUCM will match that with configured SIP Realm and create a new INVITE
with configured credentials.

On Mon, May 11, 2015 at 3:33 PM, Claiton Campos <claitoncampos at gmail.com> wrote:
> I have a scenario where I need to create a SIP trunk between a CUCM 10.5 and
> a third-party PBX. The problem is that the third-party PBX prompts the trunk
> sip is authenticated through username and password should I register on the
> CUCM. Has anyone had an experience with this type of configuration on a SIP
> Trunk?
>
> Tks,
>
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