I have a 7937 hooked up to a CAT3550 and we have PoE runing to that device but it keeps on power cycling. I tried to extend the power on the 3550 by issuing the following command SWITCH#power inline delay shutdown 20 initial 300. All this does is it powers up the 7937 for aprox. 20sec then it goes back to shutdown and tries to power up again.
Does it manage to pull an IP address from DHCP? Does it contact the TFTP server? I'm seen issues with IP phones that continually reboot because the phone cannot find the right version of firmware to upgrade to. Although 20 seconds is awfully short for that to be the problem.
It might be that it can't connect to the TFTP server as the screen on the devices is "blank". But even then I would assume that there would be some default firmware version on the device that would let you know if you can or can't connect to the server.
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...