Ericsson BUSINESSPHONE 250 - MANUAL 2 Manual page 7

11 Monitor
To monitor a call on hold. See sections "Outgoing calls -
Supervise long distance calls" and "During calls - Individual
hold and monitor".
12 Loop 1 / 2 / 3
To put calls on hold or camp on calls. See sections "Outgoing
calls" and "During calls".
13 Notify
To reserve an extension or external line when you receive busy
extension or external line. See section "Outgoing calls".
14 Volume control
To adjust the volume. Also space/backspace in writing mode.
See sections "Audible adjustments" and "Write text".
15 Mute
To switch the microphone on or off. See section "During calls".
16 Loudspeaker on/off
To switch the loudspeaker on or off. See section "During calls".
17 Answer/Extend / Enter
a. To answer/extend calls. See sections "Incoming calls",
"Outgoing calls", "Call metering", "Group facilities" and
"Other facilities".
b. Enter/select information. See sections "Attendance" and
"Mailbox system".
18 Microphone
19 Optional key panel
17 dual-function programmable keys per key panel.
Four panels can be connected.
Note: If one or two key panels are used, the optional key panel
DBY 409 01 may be used. However, if three or four key panels
are used, all optional key panels must be of type DBY 409 02.
20 Loudspeaker
21 Handset with hearing aid function
Please note: The handset may retain small metal objects in the
earcap region.
7
DESCRIPTION
BusinessPhone 250 - Operator´s Console
BusinessPhone 50 - Operator´s Console