Filter
Top Products
M3900 Flash Download Page 249 of 504
Telephones and Consoles Description, Installation, and Operation
25.30 Ye s Phase I Follow the standard software order
process.
Phase II,
Phase III
Note: This is not a standard process.
There should not be M3900 Phase II and
Phase III telephones on a Release 24.2x
system.
1. Follow the Large System Release
24.2x to 25.30 procedure for Phase I
telephones (above).
The Release 25.30 contains M3900
Phase I firmware for M3905 telephones
and Phase II firmware for M3902,
M3903, and M3904 telephones. Follow
the Flash Download process to
downgrade the M3900 Phase III
telephones to Phase I/II firmware.
25.40,
25.40B
Ye s Phase I Follow the standard software order
process.
Phase II,
Phase III
Note: This is not a standard process.
There should not be M3900 Phase II and
Phase III telephones on a Release 24.2x
system.
1. Follow the Large System Release
24.2x to 25.40/25.40B procedure for
Phase I telephones (above).
The Releases 25.40 and 25.40B contain
M3900 Phase III firmware for M3900
telephones.
Table 38
Flash Download procedure matrix for Large Systems (Part 3 of 15)
Present
software
Upgrade
to
software
Keycode
required
M3900
telephones
Upgrade steps