Question about Cisco 7940 IP Phone
Wont power up. I got the circuit board open but cant seem to locate the problem
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Posted on Jan 02, 2017
SOURCE: convert CISCO 7940 to SIP
you need different files to upload by tftp
by example version 8
OS79XX.TXT (tells the version)
Posted on Aug 26, 2008
Unlocking a Cisco 7940
1) Unplug the phone
2) Plug the phone back in while holding the # key
The phone will soon display “Reset key sequence detected”
3) After several lights flash press the following keys in order:
1 2 3 4 5 6 7 8 9 * 0 #
4) The phone will then ask you if you want to save the network configurations:
Save network cfg? 1=yes 2=no
5) The phone will soon display “Factory reset initiated” and will continue
through the boot up process.
If that process fails to work for some reason there
is a second method.
Complete these steps:
Also see this link
Posted on Nov 25, 2008
It sounds like you have enabled Do No Disturb accidently. This can be turned on and off by pressing the DND softkey button along the bottom of the LCD display. You might need to press the 'more' softkey to display all options.
Posted on Sep 24, 2009
Has this just stopped working, or has it never been working?
On the call manager / CME the MWI (Message Waiting Indicator) needs to be configured. This could be undertaken either via the GUI or from the CLI
For instance ...
and also mapped to each phone to enable MWI status
ephone-dn 1 dual-line
call-forward busy 800
call-forward noan 800 timeout 10
Complete config details are at:http://www.ciscosystems.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_m1ht.html#wp1018439
If this helps pls leave feedback
Posted on Feb 04, 2010
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