Here is the key sequence you are looking for from the Cisco documentation for 7.2.x.
Resetting a Cisco IP Phone Model 7960 or 7940.
In previous releases, you could enter the reset code when a phone was on-hook at the main phone screen. With this release, you can no longer reset the phone from the main screen; instead, you must use the Settings screen or any other screen that does not accept user input. This new behavior results from a customer requirement to allow beginning a dialing sequence with * or # while the phone is on-hook.
To reset a Cisco IP Phone model 7960 or 7940, follow these steps:
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
Over the last few months, I have had the privilege of working on SI...
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...