I have a 4621SW IP that I am trying to setup. I have set up several of the same phones for the IP Office 500. When the phone starts up I press * to program, I press # several times to get to the Command Prompt and try to clear the phone (mute or hold 2 5 3 2 7 #) but it does not respond to most commands. I am only trying to clear the phone since it hasn’t worked after being configured. It just loads over and over. Thanks for any help.