Aastra Dialog 4225 Vision User Manual

11Dialog 4223 Professional/Dialog 4225 Vision
Description
6 Callback
Indicating/activating Callback. See section “When you receive a busy
tone” on page 38. The feature can be removed or moved to another
programmable function key by your system administrator.
7 Diversion (Follow-me)
Indicating/activating and deactivating Diversion (Follow-me). See
section “Call Forwarding” on page 60. The feature can be removed or
moved to another programmable function key by your system
administrator.
8 Programmable function keys
Program numbers or features. See section “Programming of function
keys” on page 92.
Note: The key marked with a “b” is also used to program a
melody, see section “Melody Ringing” on page 103.
9 Triple Access Line
Handle calls. Line 1 and 2 are available both for incoming and outgoing
calls. Inquiry can only be used for outgoing calls.
10 Microphone
Used for handsfree conversation.
11 Clear
Disconnect calls or exit a feature. Can always be pressed instead of
replacing the handset.
12 Headset key
Handle headset calls and activate Headset Preset. See section “Headset
(optional)” on page 111.
13 Loudspeaker on/off
a. Activate handsfree conversation. See section “During Calls” on
page 50.
b. Activate Loudspeaker Preset. See section “Headset Preset” on
page 112.
14 Mute
a Switch the microphone on or off during a call. See section “Mute”
on page 51.
b Switch off the ring signal in idle mode or when ringing. See section
“Mute ring signal” on page 102 and “Silent Ringing” on page 102.
15 Volume control
Adjust the volume. See section “Settings” on page 92.
16 Loudspeaker

Aastra Dialog 4225 Vision Specifications

General

Brand	Aastra
Model	Dialog 4225 Vision
Category	Telephone
Language	English