You need to implement class of service, by utilizing paritions/calling search spaces. Please refer to CM System Guide for details.
If you already have PT/CSS implemented, all you need to do is add a blocking route pattern or translation pattern with DN 91800123456, assuming you use 9 for off-net access code and place it in global parition reachable by all phone CSSes, this way nobody will be able to call it.
Typically I create a dedicated parition TollFraud-PT and place all blocked patterns in it, i.e. 900/966/Caribean area codes, and put this PT in all CSS, this way you have a little bit more control.
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...