We are using Unified Communications Manager and currently have a hosted Microsoft Exchange 2007 Server. We would like to use the two together but not sure where to begin and what is required (if anything ) between our Office and that of our host provider.
In terms of the hardware we are running here we have:
1 x Cisco 2801 voice gateway router
1 x Cisco 3560 with 48 PoE Ports
Unity Express for voicemail
Cisco 5500 Series ASA Firewall
Cisco Presence Server integration with Call Manager
Cisco Voice Gateway services
Communications Manager 7
30 x IP Phone 7945 handsets
5 x IP 7965 Phones
I have looked but I am unable to find any installation guide on how to set communication between Communication Manager and Exchange 2007 so I am not sure if this is possible when the Exchange Server is offsite?
Any help would be appreciated.
Yes, this is definitely possible. From the CUCM perspective you must setup a SIP trunk that points to your Exchange environment. In the Exchange environment you will need to designate the UM server role on one or more Exchange servers. You will also need to ensure you have (or upgrade to) the Microsoft Enterprise CAL. You need this level of licensing to use the Exchange UM application/feature. While I do have a CUCM cluster deployed that is using MS UM on Exchange 2007, I did not setup the Exchange side myself. So, either someone else on this forum can weigh in on the specifics or you should research this integration from the Microsoft perspective. There are plenty of integration notes and forums on the topic (one of which is a link I provided in the previous post).
With Exchange 2007 there is a small, but important, consideration (probably one of many). The Exchange 2007 UM solution is unable to send Message Waiting notification on new/deleted/saved messages. This means that MWI on your phones will not work. To get MWI you will need a 3rd party product. I believe on the deployment I supported they used GeoTel.
In my experience, the Enterprise CAL and the MWI thing have been items that are not really discovered until late in the process of planning a deployment. So, I wanted to make sure you knew about them upfront.
So, that is CUCM->MS Exchange info. The other part of the equation is to have CUPS integrate with exchange so that calendaring information can be incorporated into a user's presence status. I have done this and it works. The CUPS server will require an AD account and a mailbox in the Exchange environment. It will also need access to an Exchange 2007 server with the client access role. It is recommended to use secure sessions when integrating CUPS and Exchange. This means you will need to export a security certificate from the server which is providing internal OWA access. This cert is then imported into CUPS. You also have to configure a few things in the CUPS server (which is adequately covered in the CUPS integration document link I posted already).
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