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
•Speaker for monitoring, e.g. to listen to
•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.
Minimum PBX requirements |
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Communication system | Minimum requirement |
Telephony Server 2.0 or Telephony Switch | |
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MD110 | BC12 Service Pack 9 |
BusinessPhone | Version 7.0 |
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MD Evolution/EBN | Version 8.0 c |
Ericsson EBG | Version 3.1.6 |
Calling features |
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| VoIP features |
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Emergency call support | • |
| DHCP | • |
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Fixed number assignment | • |
| RTCP, IETF RCF 3550 | • |
Monitor speaker | • |
| Quality of Service IEEE 802.1p&q and Diffserv | • |
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Mute function | • |
| VLAN support IEEE 802.1p&q | • |
Volume control | • |
| Support for codecs: G.711, G.729a, G.729ab, G.723.1 | • |
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Programmable ring tones (max. volume >72dBA) | 10 |
| H.323 V4 | • |
Speed dialing | • |
| Branch office survivability support | • |
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Increased hearing level for users with impaired hearing | • |
| Prepared for SIP support | • |
Acoustic chock protection: ETS 300 | • |
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