Summary of Contents for Aastra Dialog 4420 IP Basic
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IP telephones are kept constantly up to date with data networks and Aastra communications systems. the most current software and ready to receive new technical Elegant and sophisticated, the Dialog 4000 IP is the enhancements.
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Dialog 4425 IP Vision Dialog 4422 IP Office version 2 version 2 Features Excellent Voice Quality and Telephony Services • Easy migration to IP telephony • Support for Aastra MX-ONE™, BusinessPhone, and MD Evolution telephony systems • Elegant design and superior ergonomics • Speaker for monitoring calls and listening to telephony • Compliance with environmental standards services (for example, interactive voice systems, news and • Easy operation and maintenance weather forecasts) • User mobility (free seating) • Equipped with hearing aid support and acoustic shock protection Models • Quality of service (QoS): Packet prioritization for speech and • Dialog 4420 IP Basic signaling according to DiffServ. Layer 2 QoS • Dialog 4422 IP Office • Dialog 4425 IP Vision...
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(Extension Authentication Protocol), IEEE 802.1x. • Support for all major voice compression codecs for bandwidth • PoE (Power over Ethernet), IEEE 802.3af, Power Class 1, which savings means less than 4W required. This enables centralized power supply with the associated capability for power supply back- • Compliant with the EU directive for RoHS (Restriction of Hazardous Substances). Product features 4420 IP Basic 4422 IP Office 4425 IP Vision Aastra Dialog IP telephones version 2 version 2 Dimensions (HxWxL) 92x159x230 mm 92x159x230 mm 102x240x234 mm Function keys with LEDs Programmable keys Support for extra key panel with 17 keys – Call list User mobility: Logon and calls –...
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Session timers in SIP • LAN cable Session Description Protocol (SDP) Security Descriptions RFC 4568 for Media Streams • Option unit supporting busy signal and extra bell • Key panel with 17 programmable function keys Service and Support If you need technical assistance, please contact your local Aastra Environmental Conditions service partner. A list of certified service partners can be found at www.aastra.com Operating temperatures +5° – +45°C Storage temperatures +/–0°– +70°C...
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