Microsoft Office Communications Server 2007 using Direct SIP to Cisco Unified Communications Manager Simultaneous Ringer 7.0(1) Feature

Hi Everyone
This time , I want to talk about OCS 2007 and Cisco Call Manager Integration. Upon my OCS 2007 telephony experience , Cisco Call Manager has only direct integration with OCS . İf you want to remote call control , you need to Cisco Unified Presence Server. But Cisco Unified Communications Manager‘s mobility feature allows you simultaneous ringing (not Dual Forking) , cisco ip phones or Cisco IP Communicators and OCS MOC clients or Microsoft Phone Editions at the same time. You can find related howto solution at http://www.cisco.com/en/US/solutions/collateral/ns340/ns414/ns728/ns784/716742.pdf. Also you can test this feature at virtual test environment. Because Unified Call Manager 6.x or above can be intalled at WmwareWorkstation or ESX for testing purposes. If you use Dual forking and Remote Call Control you will have "in a call" status even when you are using the phone. It's only Nortel that supports Dual forking and Remote Call Control right now. Here is the Supported IP-PBXs for Microsoft Office Communications Server 2007 link :http://technet.microsoft.com/en-us/office/bb735838.aspx#ippbx2