IP Phones and Callmanager

Question

What does it take to get my Cisco 7960, 7940, or 7910 IP Phone to register with Cisco CallManager?
Bill

Answer 1

Hi bbaley,
There are two methods to get your Ip phone register with Cisco call manager but first the requirement are :
1)Power to IP Phone : this can be either from any PoE port in switch Or power through adapter.
2)Dhcp server : the connected device(in this case IP phone) will follow the DORA process to get -
ip address from the pool of available Ip's, subnet mask, Dns address, default router, and domain name. Dhcp is to be configured with an option 150 (for TFTP Server address).Since 
all the config, firmware can be downloaded from that directory. Cisco call manager also provide a feature of TFTP server, so 
you can make Cisco call manager as your TFTP server. Provided that you have to mention the TFTP address in DHCP as that of 
Cisco call manager. And in cisco call manager you have to enable the feature of TFTP server and give it the ip address that you will 
configure in Dhcp option 150.
Once, IP Phones will get the TFTP server address it will start downloading the config file. Here you need to remember that you can make the 
device registration as auto registration or configure it manually .
1st method to configure it manually :
Note the mac address of ip phone wich is printed back side of it -> go to CM administration -> in device tab -> select ip phone -> select add new device ->
now select the model of the ip phone, assign the mac-address of the ip phone and provide the extention number
2nd mathod : Configure an auto generation in Cisco call manager -> go to Cisco unified call manager and enable auto registration -> choose system and then cisco unified call 
manager, assign the dirtectory number, 
now your IP Phone will get register from cucm 
Regards,
Spooster