Nortel Meridian M3900, Reference Manual

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M3900 series general description 15
Meridian SL-100 M3900 Meridian Digital Telephones Reference Guide
Context-sensitive softkeys
The M3903, M3904, and M3905 have four softkeys directly below the
display. Only the features that are configured for the telephone set
display on the soft labels above the keys. For example, features like
transfer and conference can be accessed during a call, but not Forward
because that feature is not needed during a call. You can access the
following functions or features using these keys:
• features configured for the telephone set
• phone status like on-hook, off-hook, or on a call
• options list, directory/log, or applications usage indication
Release 3 enhancements
Full Duplex Handsfree capability
The Full Duplex Handsfree (FDHF) functionality allows simultaneous,
two-way communications during a handsfree call. For Full Duplex
Handsfree functionality, you require an M3904 Release 3 telephone set
equipped with an FDHF cartridge accessory. For hardware
requirements information, see
“Full Duplex Handsfree Accessory” on
page 72 .
The set attenuates the receive audio level during FDHF mode while
both parties are speaking. Therefore, there can be fluctuations in the
receive volume during an FDHF call. During the call, you can insert or
remove the FDHF cartridge from the Accessory Connection Module
(ACM) without interrupting the established call. If you remove the FDHF
cartridge, the set restores half duplex operation.
One-button feature access keys
M3900 Release 3 firmware and MSL15 or later software introduces the
following enhancements for Personal Directory, Corporate Directory,
Call Log, and Redial List:
• The user can press the Directory/Log key and start a directory
search through the dial pad without pressing the Select softkey.
Searches can now be made with three letters, rather than only one.
• Instead of needing two key strokes with Corporate Directory, the
user presses the Applications keys and enters letters using the dial
pad to begin a search.
• Call Log and Redial List can be datafilled as either context-sensitive
softkeys or programmable feature keys.