Ericsson BUSINESSPHONE 250 User Manual page 8

DESCRIPTION
DESCRIPTION
(continued)
6
4 Dual-function programmable keys (A-D)
Storing numbers and program functions.
See section "Programming".
5 Dual-function programmable key (C) / Headset key
a. Storing numbers and program functions.
b. The headset function is only available with option unit
(DBY 410 02) installed. The headset key is programmed by
the system administrator. See section "Optional equipment".
6 Transfer / Diversion
a. Transfer an ongoing call. See section "During calls".
b. Activate/Deactivate diversion. See section "Call forwarding".
7 Inquiry / Conference
a. To make an inquiry to an internal or external party.
b. To establish a telephone conference.
See section "During calls".
8 Line 2 / Read & (Standard telephone only)
a. Line key 2 for in and outgoing calls.
b. Read information (Standard telephone only).
See section "Information".
9 Line 1 / Save/Redial
a. Line key 1 for in and outgoing calls.
b. Save or redial an external number. See section "Outgoing calls".
10 Volume control
To adjust the volume. See section "Audible adjustments".
11 Mute
To switch the microphone on or off. See section "During calls".
12 Loudspeaker on/off
To switch the loudspeaker on or off. See section "During calls".
13 Clear
To disconnect calls or to clear the display in programming.
14 Loudspeaker
15 Handset with hearing aid function
Please note: The handset may retain small metal objects in the
earcap region.
16 Microphone
BusinessPhone 250 / BusinessPhone 50
Standard Telephone / Economyplus Telephone