Firstly, get a very clear description of the problem from the end user.
Then check the physicals. Ethernet disconnected can be a problem with the cabling. Not sure why it would be time related, could just be intermittent. Otherwise maybe someone is sharing the cable, and some device is interfering.
If you have access to the switch. Get the mac address, locate the phone port via sh cdp neighbor and check the logs.
Is the port really going up and down etc. Time stamps should help you verify the end users story.
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...