Question about Cisco 7975G
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Posted on Jan 02, 2017
This phone can be access through a menu/ setting buttons.
Useful link on how to navigate through the phone:
I think the main problem is to determine the intergrated router or Call manager configuration
You can also connect on switch and type:show cpd neighbor This will show the physical port connections
Posted on Dec 30, 2007
the first problem will be to check or replace the cable that you use to connect the phone or check the jack that you use
Posted on Jul 12, 2007
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
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