How to setup IMAP for CUCMBE to check Voicemail Messages

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Aug 23rd, 2010
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Hi all, I have a CUCMBE installation and have a ton of Voice Messages in our "UndeliverableMessagesMailbox". When I try to check the mailbox by dialing the extension, the pin that I have reset a number of times, will not work and gives me an "invalid entry".

Moving forward, the amount that I need to check is huge and I thought possible checking the VM's via IMAP is the way to go.

Can anyone give me any steps in setting IMAP up? It does not need to be neat I just need to access these Voice Messages.

Here is my info:

Cisco Unified CM Administration System version:

Cisco Unity Connection version: 2.1.3ES23.1000-23

Thanks for the help,


Correct Answer by David Hailey about 6 years 11 months ago

IMAP access if first enabled via the Class of Service assigned to a subscriber - so you must take care of that first.  Then, take a look here:


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philip.e.denton Tue, 08/24/2010 - 05:06
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David is correct (rated) but IMAP integration can be tricky so reply if you get stuck.

dan hale Tue, 08/24/2010 - 08:39
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Thanks guys.....David was correct I never would have thought to look in COS. Enabled

IMAP in Class of Service and I'm able to pulls VM's!



David Hailey Tue, 08/24/2010 - 08:42
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Good deal. It's actually not too tricky IMO. However, many people get confused when looking at the System and Administration guides because a lot of information regarding SMTP and IMAP are lumped together in the same section of documentation and they should likely be handled separately from a documentation perspective. Glad to hear all is well.



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