We help IT Professionals succeed at work.

Remove Callmanager

Matt Grofsky
Matt Grofsky asked
Medium Priority
Last Modified: 2011-09-20
Ok this is driving me nuts.  I had previously converted a Cisco 7940 to a SIP by changing the TFTP IP and having it load up newer versions of the firmware 7.4.

I recently had to reset the phone and it reverted back to a cisco with callmanager 7.2 firmware on it.

Having a problem now trying to manually set IP info, where when I give the phone a restart it will try to connect to a setting int here called CallManager1 with some off  what looks like a local IP.  I cant seem to edit this IP or get the phone to connect to the TFTP server I set it up as.  

Any help would be appreciated.
Watch Question


Let me re state my question slightly differently

I'm having an odd problem where I reset 7940 from a SIP phone to factory default and am trying to set it up to TFTP to download latest firmware and config files.

Problem I'm having is I cant change that callmanager IP and everytime the phone boots it shows opening (have no idea what IP is) and then it goes into  Configuring CM List...I dont want call manager on there I want it just as a SIP phone any idea how I can remove this?

What is the firmware version showing, did it revert back to a SCCP load?



sorry Sallwine I never got an email saying this thread was updated...yes it reverted back.  If I can get in to change the TFTP server I have the latest firmware on there ready to update the phone.  Just for the life of me cant figure out how to get it to connect there, it wont let me change it.
It sounds like you do not have a CallManager. If I am wrong and you do then you can put the new firmware in the TFTP folder and then put the file name in the Load field on the phone. If you do not, then you should be able to change the TFTP server manually on the phone. If the settings are locked then you can use **# to unlock them (when you are on the settings page). Alternatively you can also try adding an option 150 to your DHCP server, and point it to the new TFTP server.

Not the solution you were looking for? Getting a personalized solution is easy.

Ask the Experts


the 150 seemed to work thanks.
Access more of Experts Exchange with a free account
Thanks for using Experts Exchange.

Create a free account to continue.

Limited access with a free account allows you to:

  • View three pieces of content (articles, solutions, posts, and videos)
  • Ask the experts questions (counted toward content limit)
  • Customize your dashboard and profile

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.