CME-as-SRST with distributed Unity

[aamercado]

I have a centralized CM topology with 3 distributed Unity associated with our 3 corresponding hub sites (ie West Coast-USA, East Coast-USA, UK). CME-as-SRST is configured and working properly at the 3 hubs.

On one of the hubs (East), there are 3 small branches (ie Illnois, Minn, and Bermuda) home to the East Unity server. These 3 are currently setup as regular SRST (NOT CME-as-SRST) if CM fails.

Is there a way to setup VM access for these smaller remote sites if I migrate from SRST to CME-as-SRST mode? I guess I can do some type of SIP but would prefer sccp in the CME fashion. I am looking at the doc below:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmesrst.html

Thx

[Marwan ALshawi]

are phones in the site that going to be cme-srst have DID numbers ?

[aamercado]

Found it - I guess I do need to use SIP so just now need to figure out how to setup "sip mwi clients"

http://www.cisco.com/en/US/docs/voice_ip_comm/unity/401/integration/guides/e41acu40.html

Thanks for your reply anyways