Hi, I do have some very weird issue with Cisco Unity 4.x and MS exchange which is running on windows 2003 (SP2). Many users complained that somebody left the messages for users but MWI & exchange never gave any kind of indication. I've started invitations and found that Messages Have Been Held in the UnityMTA Directory. I tested by my extension and tried to leave voice mail for other user. And found that this works perfectly. But, when I tried to leave voice mail from mobile phone I can able to get voice prompt but later Undelivered Voicemail messages are found in the commserver\unitymta\failed directory.
I can able to see below error in Unity's MS event viewer but not sure what the relation with this issue is as local extension works normally.
Event Type: Failure Audit
Event Source: Security
Event Category: (2)
Event ID: 534
Event Type: Error
Event Source: CiscoUnity_UMR
Event Category: (8)
Event ID: 137
What I tried is following with no success:
- restarted AvUMRSynchSvr service
- Restarted unity server
- ping to exchange is 100% & vice versa
- Deleted MAPI profile and created by rebooting unity server.
Unity behaves like this only in two conditions.
- If caller is external
- If EM user logged off from IP phone.