you don't mention if you want proxy or shared, so read the right section of this doc
Cisco Unified Communications Manager Features and Services Guide, Release 7.0(1)
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_0_1/ccmfeat/cmfsgd701.html
HTH
java
if this helps, please rate
HTH
java
if this helps, please rate