Have enough tie-line trunks availableIt's better to overprovision the trunking between systems than have too few channels between systems. When integrating systems, you must choose whether the CallManager phones will have their own Public Switched Telephone Network (PSTN) trunks. If the CallManager phones are on a campus, it's recommended that you have them act as extensions off the PBX and use the PBX for inbound and outbound PSTN connectivity. Because of cost and PBX space constraints, you might not be able to overprovision trunks. You might have to migrate tie-lines one at a time, which requires some level of accuracy. One way to get an idea of how many trunks you need between systems is to do a traffic study on the PBX for the groups of users you intend to migrate. For example, say you intend to migrate Building A. If you have the capability, check the call detail records on the PBX to see how much calling the users of Building A actually do. Using this information ensures that you have enough trunks between CallManager and the PBX when you migrate the users. If the CallManager phones are at a remote site, it's best to provision PSTN connectivity directly on CallManager.
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...
[toc:faq]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 discusse...