The thread says Cisco phones just work. Does it have to be a certain protocol to work correctly? I spent a month getting three 7960s upgraded from the very first version of SCCP/Skinny (It was a hastle becuase the old firmware version didn't want to be upgraded.) to the latest SIP protocol. Do I need to flash them back to SCCP/Skinny to have LinuxMCE auto configure them? Or will SIP work just fine?