- Nortel Telephones and Consoles Description, Installation, and Operation

Appendix D: M2317 telephone Page 441 of 504
Telephones and Consoles Description, Installation, and Operation
Feature description
Firmware features
Firmware is chip-dependent and cannot be changed or altered on site. As a
general rule, all firmware is on ROM microchips. Firmware is built into the
M2317 telephone and the CS 1000 and Meridian 1 systems.
Firmware functions
The following functions are performed by firmware in the M2317 Telephone:
•Predial
• Last Number Redial
• Saved Number
• Redial Saved Number
•Timer
• Time and Date
• Call Processing
Software features
Downloading
All information related to the programmable keys must be downloaded into
the M2317 RAM memory through the DLC.