Ericsson 4000 IP manual Upgradeable, Up-to-date, Product features, Ericsson Dialog IP telephones

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

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

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)

Product features	4420 IP Basic	4422 IP Office	4425 IP Vision
Ericsson Dialog IP telephones		version 2	version 2
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	–	–	•