OCS R2 and CUCM6.1 integration, Caller ID and name when using Unity call handler

Answered Question
Apr 20th, 2010
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We just have done MS OCS R2 and Cisco CUCM6.1 integration and most of features work as expected. As there is no DID for each user, external incoming calls are transferred to internal extension using AA in Unity 5.01 then ring on both of Cisco phone and Office Communicator (CUCM Unified Mobility feature).

Now the problem is that the caller ID displays on Office Communicator is the number of Unity voicemail ports, but not the orignal calling number.

When I check SIP messages on MS mediation server, it shows the number of Unity voicemail ports is sent to OCS.

The caller name and caller ID on Cisco phone are correct.


Call flow:


Call main number --> Cisco 2851, PRI --> CUCM6.1 --> Unity Call Handler --> CUCM6.1 --> ring Cisco phone

                                                                                                                          |

                                                                                                                          |

                                                                                                                      SIP trunk --> OCS Mediation --> OCS


Is there anyway to configure CUCM to send orignal calling number over SIP trunk to OCS?


Thanks.


Michael

Correct Answer by Berry G about 7 years 2 months ago

try to change "Display Original Calling Number on Transfer from Cisco Unity" in CCM service parameter configuration  to true,

it is set to false by default.

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Correct Answer
Berry G Wed, 04/21/2010 - 00:26
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try to change "Display Original Calling Number on Transfer from Cisco Unity" in CCM service parameter configuration  to true,

it is set to false by default.

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