After I downloaded the 8.2 SIP Firmware from Cisco I had real trouble getting the phone to load it, I had come to the conclusion that I needed to upgrade to 6.x first then 8.2, but this was not correct. By using the Solarwinds tftp server I could see which files the 7960 was asking for and it then became obvious that I needed to rename 2 of the files from P003.... to P0S3..... and making sure that all references to the firmware in the config files said P0S3... Once this was done the new firmware loaded into my 7960 :)

I need help in acquiring the SIP 6x and 7x images, any help could be appreciated. Thanks

I need help in acquiring the SIP 6x and 7x images, any help could be appreciated. Thanks

I've bought a mint new 7940 with this firmware:
App Load ID: P00305000600
Boot Load ID: PC0303010100
Version: 5.0 (6.0)

There is no SIP firmware. I've tried to follow the instructions above mentioned but nothing happens.
The phone connect to my TFTP server on local vlan and search only 2 files:
OS79XX.TXT
phoneMacAddress.cnf.xml

This files are correctly sent to phone but the firmware image don't load.
I've tried to put P0S3-07-40 firmware.

There is a way to hard resetting the 7940?

Any ideas? Thanks

**# only works for the SCCP image or maybe also older SIP images.

As of SIP version 7.4, you unlock by pressing 'Settings' button, enter '9' or scroll down to the 'Unlock Config' option and press the Select button.

It will prompt you for a password to enter.

Default password is 'cisco' unless you already set a different password before.

Enter the password then press the Accept button.

Your phone should now be unlocked, so that you may now alter the configuration.

To unlock: Press “**#�

Configure TFTP server on the 7940/7960.

• Press “settingsâ€?

• Go down to “Network Configurationâ€?

Press “Select�

Go down to “Alternative TFTP�

Press “Yes�

Press “Save�

Go down to “Network Configuration�

Press “Select�

Scroll down to “TFTP Server�

Press “Edit�

Under “New TFTP Server� key in IP address of the server

Example: 192.168.0.5

Press “Validat.�

Press “Save�

Press “Save�

To unlock: Press “**#�

Configure TFTP server on the 7940/7960.

• Press “settingsâ€?

• Go down to “Network Configurationâ€?

Press “Select�

Go down to “Alternative TFTP�

Press “Yes�

Press “Save�

Go down to “Network Configuration�

Press “Select�

Scroll down to “TFTP Server�

Press “Edit�

Under “New TFTP Server� key in IP address of the server

Example: 192.168.0.5

Press “Validat.�

Press “Save�

Press “Save�

I tried to goto version 7.3 before I read this post. I cant seem to roll back.. any ideas

Procedure to upgrade to SIP image 7.3.

You must first update to sip image 6.3. Once the phone has 6.3 loaded then you can upgrade to 7.3.

Upgrading to 6.3:

You must obtain the following files:
   SIPDefault.cnf
   OS79XX.TXT
   SIP image files for both 6.3 and 7.3  (you can only get these from cisco)

1. Setup the tftp server and put the files in the tftproot directory.
2. Edit OS79XX.TXT and put P0S3-06-3-00.
3. Edit SIPDefault.conf and put P0S3-06-3-00 as the image file.
    **  These files must be unix text files. no CR/LF.  When editing these files use wordpad.
4. The phone will get the TFTP server address from DHCP using option 66. If you need to change it on the phone, goto Network Settings option Alternate TFTP and set it to yes. Then go to TFTP server and change the address to your TFTP server. How you do this depends on what image you have currently on your phone.
5. After setting the TFTP server, reboot the phone.
6. The phone should upgrade to 6.3. If you get a checksum error then your SIPDefault.cnf or SIP.cnf is not a text file.
7. Verify the sip version, on the PHONE goto Status -> Firmware versions.

Now you can upgrade to 7.3:

Edit OS79XX.TXT, SIP image 6.3 will look in this file.
 P003-07-3-00
Edit SIPDefault.conf
 P0S3-07-3-00

Reboot your phone:
It appears that SIP image 6.3 looks at OS79XX.txt for a new image. It will then load the new Application Loader (for 7.3). The new Universal Application Loader no longer looks at OS79XX.txt but instead only looks at SIPDefault.cnf. What the phone will do is load the new Application Loader and reboot. After rebooting, the phone will look in SIPDefault and see the P0S3-07-3-00 and load the new SIP image. After this is done you can edit the SIP.cnf file and update your config.

P.S. I forgot to mention that after upgrading from skinny to SIP you will need to reset the TFTP server address.

HOPE this helps.