I'm planning to set up a multi-site CME lab with an IOS firewall on each CME. How will I be able to let the h323 voip call through the firewalls at each end?
Just a note to add to the great tips from my friend Paolo (+5 points for you Paolo).
You are correct on the CUE references. Here is the old info;
Cisco Unity Express must be installed on each Cisco CME host router. Cisco Unity Express cannot provide voice-mail services across Cisco CME routers.
Here is the new info (I don't think CUE 3.2 is out quite yet - but soon I hope);
Q. What are the new features introduced with Cisco Unity Express 3.2?
A. Cisco Unity Express 3.2 introduces the following enhancements:
â¢ Integration with multiple Cisco Unified Communications Manager Express sites: Cisco Unity Express (on NME-CUE only) can integrate with up to 10 Cisco Unified Communications Manager Express remote sites. This solution allows centralized voicemail and Automated-Attendant features for up to 10 sites when voicemail at each remote site branch is not essential and there is a small number of users at each site.
Q. Which releases of Cisco Unified Communications Manager Express will be supported with Cisco Unity Express Release 3.2?
A. Cisco Unity Express **will be supported with Cisco Unified Communications Manager Express Releases 4.0, 4.1, 4.2, and 4.3.
Cisco Unity Express Release Notes
Hope this helps!