If your phone is currently running a version older than 8.3(3), you must first upgrade to an intermediate version (like 8.5(2)) before applying version 9.4(2).
The official way to download this software is through the Cisco Software Download portal. cmterm7975sip942sr4zip upd
Conversion from the default SCCP (Skinny) protocol to SIP can be complex and often requires a specific TFTP server setup with a SEP[MAC_ADDRESS].cnf.xml configuration file. Cisco Community Hard Reset Procedure If your phone is currently running a version older than 8
If your phone is currently running a version older than 8.3(3), you must first upgrade to an intermediate version (like 8.5(2)) before applying version 9.4(2).
The official way to download this software is through the Cisco Software Download portal.
Conversion from the default SCCP (Skinny) protocol to SIP can be complex and often requires a specific TFTP server setup with a SEP[MAC_ADDRESS].cnf.xml configuration file. Cisco Community Hard Reset Procedure
