I've been reading about Exchange 2007/2010 and CallManager 4.3 integrations and I'm getting kind of lost in all the different information. Some people say Exchange 2007 + CM4.x is a no go, as features like MWI don't work. Others say there are no problems and that they have a fully working environment. Also, all the documentation I find is about Exchange 2007: it seems like noone has tried setting up Exchange 2010 with CM4.3. I expect that Exchange 2007 and 2010 have the same compatibility with all CallManager products, but this isn't stated anywhere.
So basically, does anyone know what is supposed to work in an Exchange 2010 + CallManager 4.3.2 environment? And which things don't work? I'm mainly interesting in knowing if and how MWI should work.
Some background information:
I currently have a test setup running. These things work:
- I can call Exchange 2010 from my IP Phones
- I can leave voicemail messages when the person I'm trying to reach is unavailable
- I can use the Play on Phone option in Outlook
Things that don't work:
- Message Waiting Indication. I get the errormessage:
An error occurred while sending MWI notification '0/3 (unread/read)' for mailbox '(3c7730b1-e52c-435b-88ce-d50ef6b5ffca)' associated with UM extension '11'. The target selected was 'CUCM'. A different target will be attempted. Additional information: Microsoft.Exchange.UM.UMCommon.MwiTargetException: An error occurred while attempting to deliver an MWI message using target CUCM. ---> Microsoft.SpeechServer.SipPeerException: A SIP NOTIFY message has failed. ---> ResponseCode=481 ResponseText=Call Leg/Transaction Does Not Exist
- Exchange generates the following error every minute:
The following UM IP gateways did not respond as expected to a SIP OPTIONS request.
Transport = TCP, Address = 192.168.2.237, Port = 5060, Response Code = 400, Message = Bad Request - 'Malformed/Missing URL'