Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Help to reset my 7970 and 7911 IP phones


I have tried to reset the 7911 and 7970 phones by pressing and holdoing down the # key after I have powered it on but the LCD becomes blank, it doesn't show the message to press the 123456789*0# to reset. when it comes up too, it will only be showing the home page without responding to any key not even the menu key.

Kindly provide assistance.


Re: Help to reset my 7970 and 7911 IP phones


I normally hold down the # key as it powers up and keep holding it until all the lights flash. I find once I release the # the line keys lights will cycle through one at a time then I perform the keypad sequence to factory reset.

Also make sure that you do the reset on a network that has DHCP and the TFTP option set.

Sent from Cisco Technical Support iPhone App

New Member

Re: Help to reset my 7970 and 7911 IP phones

ok. Will try this and let you know the outcome.



New Member

Re: Help to reset my 7970 and 7911 IP phones

if it did not work, please proceed with the following:

connect the phone on a switch port (e.g fastethenet 0/1)

connect a PC on which wireshark is installed to another switch port (e.g fastethenet 0/2)

on the switch configuration level issue the following:

session monitor 1 source interface fastethernet 0/1

session monitor 1 destination interface fastethernet 0/1

start sniffer, then unplug and plug the phone wait for 2-3 min then save the sniffer and sent it please.