ARTICAL - Changing firmware to Cisco IP Phone 7960

Introduction:

Cisco 7940/7960 IP phones can support either the Skinny Call Control Protocol (SCCP) to run with Cisco CallManager, the Session Initiation Protocol (SIP; refer to RFC2543), or the Media Gateway Control Protocol (MGCP), but not more than one simultaneously. This is possible because they load different firmware versions on bootup. This functionality is transparent to the end user, and you enable it through changes to the basic text-based configuration files that the phones download from a Trivial File Transfer Protocol (TFTP) server.

URL: http://cisco.com/en/US/tech/tk652/tk701/technologies_tech_note09186a0080094584.shtml