CUCM 7.02 - Change DHCP for a phone or which tftp server to use

[lleweyiss]

              I have upgraded all phones in my cluster except for a group of phones in Tokyo , they all have this TERM61.DEFAULT .. I want to upgrade them to a newer version , but keeps failing.  It is not going to the 1st TFTP server but the alternate.  That alternate server I think is having some ohter issue... but real question is how do I change individual phones to go look at a the 1st tftp server or another tftp server.  Want to see if it can gets it load from the other server(s).    

[Ayodeji Okanlawon]

You can use set the phones to use "alternate tftp" and there you specify the ip address of the TFTP server you want to use.

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"opportunity is a haughty goddess who waste no time with those who are unprepared"

[lleweyiss]

I am in the US and the phone is in Tokyo.  Is there a way for me to change the tftp server for a particular phone from the Call Manager Admin ?  I think your reply may indicated to make the change fromt eh phone instrument itself .....  We have a language barrier so I am hoping that there is a way to do this from here in the US from the Call Manager.

[Ayodeji Okanlawon · Accepted solution]

No you cant change tftp from CUCM. You can change TFTP in two places

1. DHCP

2. Manually on the phone

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"opportunity is a haughty goddess who waste no time with those who are unprepared"

[lleweyiss]

thanks,  I was afraid that was the answer. 

[islam.kamal]

Hi

you can use DHCP of the Publisher (Call manager) for youre phones so IP address and firmware will be through the publisher . To do that  you have to ways

1- Configure your CM as DHCP .You have to enable (DHCP moitor service). configure DHCP and DHCP subnet which will be used for the IP phones and i do not recommend that because you use CUCM v7 and there is a bug for this and you have some steps to solve this issue .

2- You can use the gateway which is for Tokyo and enable DHCP kindly find the below configuration

ip dhcp pool VOICE

network 177.1.11.0 255.255.255.0                  ( network subnet)

default-router 177.1.11.1                                 (your IP subnet)

option 66 ip 177.1.10.10                                  (IP of your CUCM)

option 150 ip 177.1.10.10                                (IP of your CUCM)

exit

Thank you

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