Mino – The UC Guy

Microsoft Unified Communications Blog

Posts Tagged ‘CUCM 6’

How to configure a SIP trunk between Cisco Call Manager 5.x or 6.x or 7.x and OCS 2007 R1 or R2

Posted by Mino on February 20, 2009

How to configure a SIP trunk between Cisco Call Manager 5.x or 6.x and OCS 2007 R1 or R2


Ok you want to ring from MOC to Cisco IP phone and back  , hmmm ok then simple we will deal with it as if OCS is an IP PBX with its extensions 3xxx and you need to connect it with Cisco PBX with extensions 7xxx.

To do that we need a SIP trunk and for the SIP trunk to work fine we need to have some specific configuration on that trunk , remember any of these settings if they not configured right then you will not be able to make a stable calling between Cisco and OCS.


First we do the SIP trunk :








Now the SIP trunk which is acting like the bridge between the cisco and the OCS is created , ok then we need now to create a criteria where this trunk is going to be used in.  This is where is Pattern comes in where we will say if a Cisco phone set tries to dial extensions starting with 3xxx then you use the trunk which we have just created .

and from the way back from the OCS to Cisco , when the number is sent in the E164 formate with the + , the Cisco will simply ignore all that and will take only the last 4 Digits which are the 7xxx






Now you are ready to make the call and Enjoy the Integration


Posted in Cisco 5.x Integration, Cisco 6.x Integration, Cisco 7.x Integration, Mediation Server | Tagged: , , , , , , | 62 Comments »

Cisco Unified Communications Manager 6.0 PBX Configuration Note

Posted by Mino on October 9, 2008


This topic provides link to configuration notes for Cisco Unified Communications Manager 6.0 that have been created and tested by Microsoft . When Microsoft or a partner deploys Exchange 2007 Unified Messaging with a new IP gateway and PBX or IP PBX configuration, the prerequisites and configuration settings are documented. This information is used to create a configuration note.

PBX configuration note contains information about how to deploy Exchange 2007 Unified Messaging with a specific telephony configuration including the manufacturer, model, and firmware version for the IP gateways, IP PBXs or PBXs. In addition, each PBX configuration note also includes other information such as:

  • Contributors in authoring the configuration note.
  • Detailed prerequisites, including the following:
    • Features that have to be enabled or disabled on the PBX.
    • Specialized hardware that has to be installed.
    • Is an IP gateway required?
    • Features that must be present on the IP gateway if one is needed.
    • Specific cabling requirements between an IP gateway and a PBX.
    • A list of Unified Messaging features that may not be available with a given telephony configuration

Posted in Cisco 6.x Integration | Tagged: , , , , , | 2 Comments »