Up-to-date
• Security authentication against a RADIUS server using
EAP protocol (IEEE 802.1x)
• Support for remote site survivability, for branch offices
equipped with Ericsson Branch Gateway (EBG)
• PoE power class 1 (Power over Ethernet IEEE
802.3af). Enabling centralized power supply – and
thereby also power supply back up possibility. The
telephones will automatically identify for less than 4W.
• Compliant with the EU directive on Restriction of
Hazardous Substances (RoHS)
Dialog 4420 IP Basic
is positioned as the
entry-level IP telephone primarily intended for
use in non communications-intensive areas like
office receptions, general meeting/service areas,
manufacturing and retail floors.
Dialog 4422 IP Office
is the mid-range IP telephone
offering functionality needed for users working in an
efficient business environment. It is also well suited
as a convenience phone in public/service areas.
Dialog 4425 IP Vision
is the high-end IP telephone
with advanced features including multiple line handling
and graphical display built to handle users every need.
It can also be used in small conference rooms.
Dialog 4420 IP Basic
Product features
Ericsson Dialog IP telephones
Dimensions (HxWxL)
92x159x230 mm
92x159x230 mm
102x240x234 mm
Function keys with LED
12
13
23
Programmable keys
7
7
17
Support for extra key panel with 17 keys
–
1
4
User mobility: log on and call
–
•
•
Hands free speaker, full duplex/AEC
–
•
•
Headset port and key
–
•
•
Programmable ringer tones
•
•
•
Option unit, support for external bell or busy signal
–
•
•
Call list
–
•
•
Personal Contacts (up to 1000)
–
•
•
Graphical Display, LCD
–
128x25 pixel
320x80 pixel
Adjustable viewing angle
–
•
•
Adjustable contrast
–
•
•
Back light
–
–
•
Internet browser
–
–
•
Central corporate directory
–
–
•
4420 IP Basic
4422 IP Office
version 2
4425 IP Vision
version 2
Upgradeable
With the 3rd generation hardware, we also introduce a
new IP platform prepared for further implementation of
advanced functions and features, following the natural
evolution of the IP world
• Support for firmware download from a web server
– enabling new functionality with coming telephony
system software releases – making the telephone
future proof
• Support for all major voice compression Codec’s
enabling bandwidth saving
• Prepared for encrypted signaling and media
