Technical data
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Dialog 4220 Lite
Reliability that comes with superior digital
voice quality
This compact, cost-effective model meets
all basic telephony needs. The Dialog 4220
Lite is specifically designed for customers
who want traditional voice functions with
superior digital voice quality. It is also a
robust convenience phone for visitor or
service areas.
Functions include:
- Clear function to disconnect call without
replacing the handset.
- Mute function to disconnect the handset
microphone and to interrupt ring signal or
silent ring function.
- Volume control for incoming voice on
both loudspeaker and telephone receiver.
- Call transfer to other extensions.
- Call diversion.
- Message-waiting indicator.
- Call back.
- Dial-by-name/speed dialing.
Dialog 4222 Office
Everyday communication with a
difference
The Dialog 4222 Office is a desktop
telephone with virtually all of the fea-
tures you need in the office. It is
user-friendly with full functionality for
complete communication needs and
equipped with integrated headset
port.
Highlights:
• 10 function keys with LED.
• You can assign keys to your desired
functions, such as message-waiting, call
diversion, callback or voicemail access.
• Keys are available for call transfer and
programming.
• On-hook dialing.
• Loud speaking function. The loudspeaker
and the handset can be simultaneously
active.
• Associated LEDs help keep track of
ongoing, parked or unanswered calls.
• All programmable function keys can be
labeled by the user.
• Adjustable foot console.
• Easy to mount on wall.
• Hearing-aid compatibility.
Highlights:
• Features a flexible graphical two line
display.
• Key panel port for connection of 1 extra
key panel with 17 LED keys.
• Programmable ringer, loudness and tone
character.
• Possibility to connect a headset directly
to the telephone. Switching between
handset and headset can easily be done
with a dedicated key.
• Supports hands free speaking.
• Supports loud speaking function. The
loudspeaker and handset can be
simultaneously active.
• The Dialog 4222 Office has 10 function
keys with LED.
• Associated LEDs help keep track of
ongoing, parked or unanswered calls.
• All programmable function keys can be
labeled by the user.
• Adjustable foot console.
• Easy to mount on wall.
• Hearing-aid compatibility.
• Supporting option unit port for
connecting external devices.
Functions include:
- Clear function to disconnect calls without
replacing the handset.
- Mute function to disconnect the handset,
headset and hands-free microphone and
to interrupt ring signal or silent ring
function.
- Headset function key to control headset
or handset usage.
- Volume control for incoming voice on
both loudspeaker and telephone receiver.
- Call transfer to other extensions.
- Call diversion.
- Message-waiting indicator.
- Call back.
- Dial-by-name/speed dialing.










