Aastra Dialog 4420 IP Basic Specification page 4

Common Features
Programmable keys
Function keys with LEDs
Power
Power over Ethernet (PoE), IEEE 802.3af. Power Class 1
Optional power adapter – input
– output
Average consumption using PoE
Average consumption using power adapter
Support for AC/AC external power supply
Special Features
2-port Ethernet switch, 10/100 BaseT/TX
(autosense)
Integrated web server for maintenance
Colors
Firmware downloads from web servers
Accessories
• Telephone toolbox on CD-ROM including Designation Card
Manager (DCM) software and user guide/quick reference guide
in PDF format: http://www.aastra.com/
• Country-dependant AC/AC power supply unit
• LAN cable
• Option unit supporting busy signal and extra bell
• Key panel with 17 programmable function keys
Environmental Conditions
Operating temperatures
Storage temperatures
Relative humidities
Regulatory Compliance
Acoustic shock protection: ETS 300 245-2
Hearing aid compatibility: ITU-T P.370 (8/96)
and FCC; Part 68, Subpart D American
EU RoHS directive 2002/95/EC
More info: www.aastra.com/sdoc
Aastra Telecom Sweden AB
SE-126 37 Hägersten, Sweden
www.aastra.com
EN/LZT 102 3849 RG
© Aastra Telecom Sweden AB, 2008
Common Features
RFC
RFC 2327
RFC 2617
48 V DC RFC 2833
100 – 230 V AC
RFC 2976
24 V AC
2 W
RFC 3261
3 W
RFC 3263
RFC 3264
RFC 3265
RFC 3455
RFC 3515
Light grey
Dark grey
RFC 3550
RFC 3665
RFC 3680
RFC 3725
RFC 3842
RFC 3891
RFC 4028
RFC 4568
Service and Support
If you need technical assistance, please contact your local Aastra
service partner. A list of certified service partners can be found at
www.aastra.com
+5° – +45°C
+/–0°– +70°C
Recycling
5 – 90%
Aastra Dialog 4000 IP telephones are recyclable. Please contribute
to the prevention of waste by sending used equipment to
environmentally certified processing facilities.
Aastra ensures environmentally sound handling and recycling of
equipment sent to any of our collection points.
Name Content
Session Description Protocol
HTTP Authentication: Basic Basic authentication
and Digest Authentication not applicable for SIP
DTMF
Used for sending DTMF
SIP INFO
digits and hook flash.
Audio part only.
Session Initiated Protocol
No TCP support
Locating SIP servers
Offer/Answer model in SDP
NOTIFY and SUBSCRIBE
Specific Event Notification
are Supported
Private Header Extension Compatible with IMS
for SIP on a basic Level
The part that concerns
Refer method
Replaces Header
Real Time Transport Protocol
SIP Basic Flow Examples
Event Package for Registration
Third party call control in SIP
Event Package to Carry Message Waiting Status
Replaces header
Session timers in SIP
Session Description Protocol (SDP) Security Descriptions
for Media Streams