You will need the SIP image and the files necessary for the SIP upgrade. The following files should be provided by your CISCO phone supplier.

Sample link: http://www.cisco.com/pcgi-bin/tablebuild.pl/sip-ip-phone7960

Download File: P0S3-08-2-00.zip Registration required.

Extract zip file, and you will find these files:

OS79XX.TXT – This file tells the phone which version of the firmware to load.
SipDefault.cnf – This file loads the default setting for every phone. Usually this includes where to register the phone.
SIP001A2F336152.cnf – This file has information specific to each phone. The 001A2F336152 (last 12 characters) of the file name is the phones MAC address, so you need to make sure this is correct for every phone you are upgrading.The SIP image that we have used contains the following files:
P0S3-08-2-00.sb2
P0S3-08-2-00.sbn
P0S3-08-2-00.loads
P0S3-08-2-00.bin

Download any TFTP server software, like in my case Solar winds TFTP Server. Install it and configure it to Transmit and Receive Files:

 

 

Please Change files SIP0006D79C1E2A._cnf to SIPyourmacaddressincaps.cnf

 

Configure your DHCP server with the specific IP address of your TFTP server. If you are using W2K3 DHCP server then the TFTP option is found on Scope Options/Configure Options/General Tab. Then tick/select option 066 which is the “Boot Server Host Name” and enter in the string value the IP address of your TFTP server

 

 

 

Manually Configure the Phone Network Settings

Complete these steps in order to manually configure the phone network settings:Press the **# buttons in order to unlock the phone. (This step either locks or unlocks the options, based on the current state.) 

·         Press Settings.·         Press the down arrow in order to select Network Configuration and press the Select softkey. There is an unlocked padlock icon in the upper-right portion of your LCD.

·         Use the toggle button and the arrow keys in order to modify any parameters. When you enter IP addresses, the * key is used for decimal points.

 

·         Press the Save softkey in order to save your changes. Note: In order to lock the phone settings, press **#. 

Configure the Phone Network Settings via DHCP

You can also configure the phone network settings from the Dynamic Host Configuration Protocol (DHCP)server. For SIP phones, make sure that the DHCP server uses Option 66 for the TFTP server. These DHCPoptions are usually configured from the DHCP server:

IP Address (DHCP Option 50) · Subnet Mask (DHCP Option 1) · Default IP Gateway (DHCP Option 3) · DNS Server Address (DHCP Option 6) · TFTP Server (DHCP Option 66) · Domain Name (DHCP Option 15) · 

Note: Cisco CallManager uses Option 150 for the TFTP server, while SIP phones expect Option 66 for the TFTP server. 

Put all the files along with the extracted SIP image files in the TFTP server root directory the one you defined on the TFTP server options and restart the device. The device will be assigned an IP/Gateway/DNS from the DHCP server as well as the TFTP server from which to load the SIP image and configuration files from.