Within a CUCM cluster, the Subscribers always recover clock from the Publisher. Unity (i.e., Windows version) doesn't typically require NTP configuration as it participates in the AD domain membership. CUPS and other servers (like a Unity Connection server) can sync NTP from the HQ router as well.
You can certainly do that...not a bad idea. However, you can (if you need to) use a router as an NTP source. It's probably better than relying on the hardware clock of each different app server. The ideal solution is probably a dedicated NTP server such as Symmetricon.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...