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Manafacture: Grandstream Networks File size: 193.62 kb File name: 4000_IP_telephones.pdf Language of manual:

It is also well- suited as a convenience phone in public/service areas. Dialog 4425 IP Vision is a high-end IP telephone with advanced features, including multiple line handling and graphical display built to handle all user needs. It can also be used in small conference rooms. Up-to-Date • SIP can be used with the MX-ONE™ Telephony Server. Features (such as callback and conference calls) are initiated in the same way as with analog telephones (suffix dialing). • Media encrypted with SRTP (Secure Real-Time Transport Protocol) and signaling 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 4W 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). Product features Ericsson Dialog IP telephones 4420 IP Basic 4422 IP Office version 2 4425 IP Vision version 2 Dimensions (HxWxL) 92x159x230 mm 92x159x230 mm 102x240x234 mm Function keys with LEDs 12 13 23 Programmable keys 7 7 17 Support for extra key panel with 17 keys – 1 4 User mobility: Logon and calls – • • Hands-free speaker, full duplex/AEC – • • Headset port and key – • • Programmable ringtones • • • Option unit with support for extra bell or busy signals – • • Call list – • • Contacts (up to 1000) – • • Graphic display, LCD – 128x25 pixel 320x80 pixel Adjustable viewing angle – • • Adjustable contrast – • • Backlit display – – • Internet browser – – • Corporate directory – – • Common Features Environmental Conditions Programmable keys Function keys with LEDs Power Power over Ethernet (PoE), IEEE 802.3af. Power Class 1 48 V DC Optional power adapter – input 100 – 230 V AC – output 24 V AC Average consumption using PoE 2 W Average consumption using power adapter 3 W Support for AC/AC external power supply Special Features 2-port Ethernet switch, 10/100 BaseT/TX (autosense) Integrated web server for maintenance Colors Light grey Dark grey 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: enterprise/library/manual.shtml • Country-dependant AC/AC power supply unit • LAN cable Operating temperatures +5° – +45°C Storage temperatures +/-0°– +70°C Relative humidities 5 – 90% 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: Service and Support If you need technical assistance, please contact your local Ericsson service partner. A list of certified service partners can be found at Recycling Ericsson Dialog 4000 IP telephones are recyclable. Please contribute to the prevention of waste by sending used equipment to environmentally certified processing facilities. Ericsson ensures environmentally sound handling and recycling of equipment sent to any of our collection points. Subject to alterations without notice. Produced in Sweden on Eco-labeled paper XGS ComPrint Ericsson AB SE-126 25 Stockholm EN/LZT 102 3849-RE © Ericsson AB, 2007 ...

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