Silly me: Guess who put double quotes around extension/label name for phone, hit save changes, and now the Cisco CME GUI does not come up... I imagine a Telnet session is required, but not sure where to start. Not sure also what version CME it is. Using 7940 series phones. Any advice for someone with basic knowledge most welcome!
Thanks Cme. I had actually solved this myself before your kind answer. Let me elaborate for others below.
Problem: Name/Label/Description (one or maybe all) were enclosed in quotation marks. Upon save, the CCME GUI did not appear and only "View window" appeared at top left of screen.
Fix: Logged into CME via telnet session. For beginners, hit Windows button and R ('run'), type 'cmd', and once there type 'telnet 10.0.0.100' where IP address is the specific IP for your CME. Type in password.
If you do not know the ephone number you need to be dealing with, type:
CME_YourCME#show telephony-service ephone
Look down the list and using the MAC address, identify the ephone you need to change.
To remove the double quote marks (e.g. for ephone 12):
CME_YourCME#configure terminal
CME_YourCME(config)#ephone-dn 12
CME_YourCME(config-ephone-dn)#name Foo
CME_YourCME(config-ephone-dn)#label Foo
CME_YourCME(config-ephone-dn)#description Foo
CME_YourCME(config-ephone-dn)#end
And that was it. Restart the phone either via the telnet session or by pulling the cable out on the phone itself. Logged into the CME via the Call Manager GUI as if nothing had ever happened. Phew!
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