Repetative dial in's from 'cisco' machine or end point
Over the past few weeks we have been receiving call attempts from a 'cisco' endpoint. We have seen this attempt from random ip's from all over the world. At first we tried to set our video end point into a 'Do not Disturb" mode but noticed logic channels opening anyway. Looking at the packet captures over a 24 hour period on port 1720 we see the endpoint calling in is labeled as 'cisco' or 'cisco/000' and has an common number attached with some variation.
The number looks like an ISDN number back to the UK. Canterbury and Edinburgh with the only differences on the front of the number string.
This has been seen at several large Illinois Universities on both Polycom systems and Cisco endpoints.
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...