Aastra Dialog 4422ip Aastra Dialog 4400 IP Telephones, datasheet
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- Aastra Dialog 4422ip | Aastra Dialog 4400 IP Telephones, datasheet - Page 1
(for example, interactive voice systems, news and weather forecasts) Equipped with hearing aid support and acoustic chock protection Quality of Service (QoS): Packet prioritization for speech and signalling to DiffServ. Layer 2 QoS Media encrypted with SRTP (Secure Real-time Transport Protocol - Aastra Dialog 4422ip | Aastra Dialog 4400 IP Telephones, datasheet - Page 2
in small conference rooms. The Dialog 4425 IP features 23 function keys with LED indicators; 17 are programmable for speed dialling or service features supported by the telephony system. Locally controlled feature keys are: mute key for switching off the microphone and volume control. This phone has - Aastra Dialog 4422ip | Aastra Dialog 4400 IP Telephones, datasheet - Page 3
DHCP* • Fixed number assignment • RTP, IEFT RCF 3550t • Monitor speaker • Quality of Service, IEEE 802.1p&q and DiffServ • Mute function • VLAN support IEEE 802.1p&q • Volume control • Supported codecs G.711 PLC, G.729a, G.729ab, G.723.1 • Programmable ring tones (max. volume > 72 - Aastra Dialog 4422ip | Aastra Dialog 4400 IP Telephones, datasheet - Page 4
oC 0 to +70 oC 5 - 90 % ETS 300 245-2 ITU-T P370 (8/96) 2002/95/EC Accessories Service and support 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
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The Aastra Dialog 4400 IP telephones harness the com-
bined power of customers’ existing data networks and
Aastra communication systems. Elegant and
sophisti-
cated, the Aastra Dialog 4400 IP is the intelligent solution
for simplified, cost-effective migration to the world of IP
telephony.
Remote upgrading of configurations or software from a cen-
tral location simplifies operation and maintenance. Regard-
less of location, the IP telephones are kept constantly up to
date with the most current software and ready to receive
new technical enhancements. The Aastra Dialog 4400 IP
telephones comply with all existing standard requirements,
as well as the latest environmental and safety regulations.
Dialog 4400 IP telephones have a number of advanced
security and safety features. Ease-of-use and ease-of-
maintenance are focus areas for new IP platform development
and will continue to be so in future feature enhancements.
Models
±
Dialog 4420 IP Basic
±
Dialog 4422 IP Office *)
±
Dialog 4425 IP Vision *)
*) Supports extra key panel(s)
Aastra Dialog 44
00
IP Telephones
Highlights
±
Easy migration to IP telephony
±
Support for all major voice compression codecs for
bandwidth saving
±
Elegant design and superior ergonomics
±
Compliance with environmental standards
±
Easy operation and maintenance
±
Firmware upgradable from web server enabling upgrade of
new functionality
±
User mobility (free seating)
±
Support for Aastra MX-ONE, BusinessPhone and MD
Evolution telephony systems
±
Speaker for monitoring calls and listening to telephony
services (for example, interactive voice systems, news and
weather forecasts)
±
Equipped with hearing aid support and acoustic chock
protection
±
Quality of Service (QoS): Packet prioritization for speech
and signalling to DiffServ. Layer 2 QoS
±
Media encrypted with SRTP (Secure Real-time Transport
Protocol) and signalling with TLS (Transport Layer Security)
±
Security authentication with RADIUS servers using EAP
(Extension Authentication Protocol), IEEE 802.1x
±
PoE (Power over Ethernet) IEEE 802.3af, Power Class 1,
which means less than 4 W is required. This enables
centralized power supply with the associated capability for
power supply back up
±
Compliant with the EU directive for RoHS (Restriction of
Hazardous Substances)