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

can i make a cisco 7911 SIP Enable

Hi there!
Can i make a cisco 7911 sip enable, and integrate it with 3rd party pbx software?
let me know.


Hall of Fame Super Gold

Yes.  It can be done.   But

Yes.  It can be done.  


But you won't find the process in this website.  Instead, go to for complete instructions on how to convert your phone to SIP.



New Member

Hi Guys!i've tried to follow

Hi Guys!
i've tried to follow the links you provide, but i did not find an exact guide for that model 7911, there were many suggestions, but none of them solved my case...


the last test i tried was this one in this link:

and i used the files on download here: (on the same link is this suggesition)

but now i'm totally in trouble.

After one factory reset i did by pressing # during boot, and then 123456789*0#, the ip phone did not upgrade to firmware i tried, and now nothing is shown in its display.

THe phone pickup ip address (, i could ping it from the computer that has tftp server and serves as dhcp server also, but nothing i could do with that.

i could not access the phone from webpage, and when i try to reset it again with :

option a. pressing # during boot, and then 123456789*0#,

option b. # key till the extension lights blink amber…then press 3491672850*# ( i found on this link:


it is the same situation.

where i was wrong, what can i do now?

please help me. see in attach the photos


Hall of Fame Super Gold

The website will also give

The website will also give you instructions about how to get your phone to work with 3rd party call server like Asterisk.