5th June 2002 at 09:28
#21184
Alexander
Guest
I did it once, but don’t remember exact procedure. In the article I’ve used to do it described how to upgrade from Skinny (SCCP) to SIP, not MGCP-Skinny, but the procedure is similar:
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/sip7960/sipadm30/maintain.htm#xtocid21
Upgrading the Cisco SIP IP Phone Firmware
Dual Booting from SCCP or MGCP to Release 3.0