Can I use Asterisk for Voice mail with Callmanager 3.3(3)?



I was wondering if it would be posible to use Asterisk for Voice mail services with Callmanager being used as the PBX? Can I use unified Messaging? What kind of hardware and software would I need to get to set this up.

I am using an ICS 7750 connected to a VG200 using a fractional PRI with DID. Thanks in advance for any help.

With Regards,

Aaron McQuaid