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Dialog 4425 IP Vision version 2 Dialog 4422 IP Office version 2
IPerformance features
• Easy migration to IP telephony
• Elegant design and superior ergonomics
• Superior environmental standards
• Easy operation and maintenance
• User mobility
IPerformance telephones
• Dialog 4420 IP Basic
• Dialog 4422 IP Office
• Dialog 4425 IP Vision
Excellent voice quality and telephony services
• Support for Ericsson MX-ONE™, BusinessPhone, and
MD Evolution telephony systems
• Speaker for monitoring, e.g. to listen to tele-services
(e.g. interactive voice system, news or weather
forecast).
• Equipped with hearing aid support and acoustic shock
protection
• Quality of Service: packet prioritization for speech and
signaling according to Diffserv. Layer 2 quality of
service.
Calling features
Emergency call support •
Fixed number assignment •
Monitor speaker •
Mute function •
Volume control •
Programmable ring tones (max. volume >72dBA) 10
Speed dialing •
Increased hearing level for users with impaired hearing •
Acoustic chock protection: ETS 300 245-2 •
VoIP features
DHCP •
RTCP, IETF RCF 3550 •
Quality of Service IEEE 802.1p&q and Diffserv •
VLAN support IEEE 802.1p&q •
Support for codecs: G.711, G.729a, G.729ab, G.723.1 •
H.323 V4 •
Branch office survivability support •
Prepared for SIP support •
Minimum PBX requirements
Communication system
MX-ONE
TM
Telephony System
MD110
BusinessPhone
MD Evolution/EBN
Ericsson EBG
Minimum requirement
Telephony Server 2.0 or Telephony Switch
BC12 Service Pack 9
Version 7.0
Version 8.0 c
Version 3.1.6