Question about Cisco CallManager 4.x (CM4XUK97825)
How about the interoperability between cisco call manager and huawei's soft3000. i want to use SIP trunk to connect cisco call manager and huawei software switch,does it work? there are some ip video phone managed by Call manager.
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Posted on Jan 02, 2017
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
Here's a great little document from Cisco directly, called "Converting a Cisco 7940/7960 CallManager Phone to a SIP Phone and the Reverse Process"
Easy to do, just follow the step-by-step directions.
Posted on Feb 20, 2010
Connecting a hub or switch to the "PC" port on the back of the phone is not a recommended best practice by Cisco as the IP phone does not support spanning tree protocol.
Posted on Jan 11, 2011
Make sure you have the phone configured as the correct device type in callmanager. Also, try and turn on auto registration in Callmanager as this will allow everything to register. Then go back and put the correct configuration the phone.
Posted on Jan 11, 2011
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