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M3900 Flash Download Page 255 of 504
Telephones and Consoles Description, Installation, and Operation
25.30 Ye s Phase I,
Phase II
Follow the standard software order
process.
Phase III Note: This is not a standard process.
There should not be M3900 Phase III
phones configured on a 25.10 system.
1. Follow the Large System Release
25.10 to 25.30 Re-issue procedure for
Phase I/II telephones (above).
The Release 25.30 Re-issue 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 phones
to Phase I/II firmware.
25.40,
25.40B
Ye s Phase I,
Phase II
Follow the standard software order
process.
Phase III Note: This is not a standard process.
There should not be M3900 Phase III
phones configured on a 25.10 system.
1. Follow the Large System Release
25.10 to 25.40/25.40B procedure for
Phase I/II 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 9 of 15)
Present
software
Upgrade
to
software
Keycode
required
M3900
telephones
Upgrade steps