Question about Cisco 7940 IP Phone
You mentioned that all keys are unresponsive? How about the 'Menu', is it included? If the 'Menu' is still responding, you may want to try the following:
1. Menu > Phone Settings > Factory Default.
* the phone displays 'Restore to Default'
2. Press OK.
3. Menu > Network Config...then configure the network settings.
If even the Menu is not responding, disconnect all the cables connected to the phone and make sure that it's turned OFF. Leave the phone off for about 5 minutes and reconnect every cables.
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
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Hard or master reset
A hard reset restores the original factory settings and may erase all downloaded content, including ringtones, images, programs, and contacts stored in the internal memory. To perform a hard reset, follow these steps:
Hard or master reset using hardware buttons
If the phone is locked, frozen, or unresponsive, you can hard reset it using the hardware keys instead of the menu. A hard reset restores the original factory settings and may erase all downloaded content, including ringtones, images, programs, and contacts stored in the internal memory. To perform a hard reset using hardware keys, follow these steps:
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