I hope someone can help me with this.
I have an IP Phone model 7942 which I am trying to register to a Call Manager but it is saying registration rejected.
There are other IP Phones all of 7942 which are registering to the Call Manager no problem and are working fine.
All these IP Phones are in the same subnet connected to the same switch and have same configuration on the switch ports.
When I am doing a sh arp i am seeing that there is an IP address associated with the MAC address of this IP phone which is not working but when i am trying to ping this IP address I cannot.
I tried to plug this IP Phone into a same port using the same cable by replacing an IP Phone which was already registered to check whether this could be a cable / port issue without any luck and see the same issue.
The status on the Call Manager is saying Unknown and the IP address is showing Unknown as well on the Call Manager.
Can anybody please advice on where the issue could lie.
Many Thanks in advance.
If it says registration rejected, then you should see registration rejected on cucm. This is usually a configuration problem. Check that you have the correct mac address on cucm and check that the tftp server on the phone is the right one
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"There is a wideness in God's mercy Like the wideness of the sea.There's a kindness in His justice Which is more than liberty"
Have you added this phone in CUCM. Or do you have auto reg on in CUCM.
Yes the method you have written is the correct method for factory reset.
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