Call Manager 8.6 and Provider SIP registration

[potter-scott]

I am wondering if it is possible for our Call Manager 8.6 to be able to register with our SIP provider, or do we need to have CUBE in between them?

[Terry Cheema]

You can not use CUCM if your SP requires SIP registration. CUCM supports IP address or the digest authentication. Technically you can have a direct SIP trunk to your SP but using a SBC/CUBE is always recommended solution for various reasons including demarcation, security, interoperability/flexibility etc.

-Terry

[potter-scott]

Is this something that is available with the newer versions of CUCM?

[Terry Cheema]

No as far as I know.

-Terry