xmarshallx

Hi,
I have been testing integrating our Mitel 3300 system with Office Communications Server 2007 and Exchange 2007 UM. So far all the testing has gone well and I have got to the point where the 3300 system is now linked to the OCS via a sip trunk with calls succefully routing between the two systems and users able to access the Exchange UM functionality via their deskphone or by phoning into the Auto attendant from an external line.

The issue I am trying to resolve now is to make the users Communicator softphone appear as if it is the same extension as the there deskphone, so if a call comes in for a users extension, both the deskphone and softphone will ring. I have previously enabled this functionality for multiple Mitel handsets by using the "Multicall" or "Key System" functions but so far this does not seem possible for an extension on a sip trunk.

I investigated how Mitel enabled this functionality on their own "Yourassistant" softphone however it seems the your assistant actually shows up in the Mitel system like a normal mitel handset so the multicall feature can be enabled.

I tried setting up a dummy extension with a multicall enabled for the desired internal extension. Then doing a call forward always to the softphone extension but this does not work, the multicalls to the dummy extension do not forward only calls placed directly to the dummy extension.

Finally I have found reference to Mitel Mobile Extensions which I believe would give this functionality. Wondering if anyone has any experience with this and the setup and costs involved or if anyone has any ideas on another way to get this functionality.
Thanks in advance.