Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Cisco Unity 7.x integration with CUCM and CUCME


I have successfully integrated Unity 7.x with two clusters

Cluster 1 Comprise of two CUCM server (Two Subs)

Cluster 2 Comprise of one CUCME.

I am using the CUME in SRST mode to cummunicate with local Unity 7.x server when CUCM cluster fails or WAN goes down. Everything seem to be working fine, except I don't quite understand how my voice mail ports are been used.

I have 32 voice mail ports, I assigned the first 21 for answering calls and port 22 and 23 for MWI dial out and configured this as per Cisco document when integrating with Unity. So my first 24 ports is for Unity 7.x to CUCM integration.

The other 8 ports I have configured for the CUCME integration, using 6 to answer calls and the last 2 fo MWI, so port 25 - 32 are assigned to the CUCME cluster in Unity.

In CUCME/SRST mode if I access unity i see port 25 been used which is expected, as port 1 - 24 are no longer registered with the CUCM cluster. What gets me is that when i leave a message and the MWI comes on, I see port 24 turning it on and not port 32. So basically I have unity port 23 - 24 turning on MWI when CUCM Cluster is available and have port 31 - 32 for MWI when in CUCME/SRST mode.

It is working, but want to know why it is behaving this way and if this is the best Cisco recommended way to set this up

Hall of Fame Super Red

Re: Cisco Unity 7.x integration with CUCM and CUCME

Hi Paul,

The "Best Practice" configs are in this good doc;

Integrating Cisco Unity with Cisco Unified CME-as-SRST

Hope this helps!