Release Notes for Cisco SIP IP Phone 7940/7960 Release 7.4
Cisco SIP IP Phone Administrator Guide, Versions 6.x and 7.x
Converting a Cisco 7940/7960 CallManager Phone to a SIP Phone and
the Reverse Process
Using the Cisco IP Phone 7940/7960
Cisco IP Phone 7960 and 7940 Firmware Upgrade Matrix
* The above links are hyperlinked to the documentation
A Note about the .cnf filename extension in Windows
The .cnf extension utilized by the Cisco SIP configuration files,
SIPDefault.cnf and SIPMacAddress.cnf is an extension already
associated with the Windows terminal program, Hyperterm.
By Default, Hyperterm hides the .cnf extension
If you would like the .cnf extension to be visible, follow these steps
– Double Click the “My Computer” icon in Microsoft Windows
– Under the menu bar of this dialog select: Tools, Folder Options…,
File Types Tab
– Click an item inside the Registered File Types list box and press the
letter C (to jump down to “C”) and scroll down to the file type .cnf
and select it
– Click the “Advanced” Button
– Check the checkbox, “Always show extension” shown in the