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Clear phone IP address from CUCM 9.x

corey.mckinney
Beginner
Beginner

I have about 40 phones that I had to delete, and then import a new BAT file for them with corrections. Now, none of the phones are registering. I noticed that when I imported the BAT file, CUCM already had IP addresses associated for the phones (I'm assuming from the previous registration). The phones are getting different IPs from the DHCP server now. I have a feeling this is why CUCM is not registering the phones. Is there a way to clear the IP address that is associated with the phones in CUCM? Thank you.

2 Replies 2

Jaime Valencia
Hall of Fame Cisco Employee Hall of Fame Cisco Employee
Hall of Fame Cisco Employee

That has nothing to do with registration, you can go to a phone, change the IP, reset it, and it will register to CUCM right away, as long as it know how to get to it, and there's nothing blocking the communication.

Look at your routing and DHCP to make sure it's correct.

HTH

java

if this helps, please rate

Hi.

If you are registering those phones phones to a new cluster, probably you have to delete TLV from ip phones before they can register to a new CUCM cluster (with different CUCM IP address)

 

 

HTH

 

Regards

 

Carlo

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