I have been tasked to find out what the differences with SIP and SCCP on 7965,7962,7942 phones.
Are there any, like iDevert doesnt work on SCCP?
Check these out
Feature Support by Protocol for the Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G
Feature Support by Protocol for Cisco Unified IP Phones 7962G, 7942G, 7961G, 7961G-GE, 7941G, and 7941G-GE