System Overview; System Features; Qos Enhancement Functions - Davolink DV-201DM User Manual

1 System Overview

DV-201DM is a residential Dial up VoIP gateway with one -port voice interface that can
be easily connected to conventional telephones and/or PBXs. Using proprietary QoS
management system, the DV-201DM has the capability of transmitting optimal voice
quality under high data traffic conditions.

1.1. System Features

Voice over IP solution
Compliant with ITU-T H.323 specification & SIP and IMTC's VOIP recommendation
Comprehensive support for industry-standard H.323/SIP Clients (Microsoft
NetMeeting)
Analog FXS Interface
Supports PSTN back-up in case emergency
Supports Multiple standard voice CODEC algorithms, including G.729.A, G.723.1
Supports standard Internet protocols including TCP/IP, UDP, and RTP/RTCP
Supports static IP and dynamic IP
Supports real time Fax (Fax Relay)
G.168 compliant echo cancellation
Voice Activity Detection (VAD) and Comfortable Noise Generation (CNG)
Supports MMC (Man Machine Command) and Web based management

1.2. QoS enhancement functions

G.168 echo cancellation
Voice Activity Detection (VAD)
Comfort Noise Generation (CNG)
Dynamic jitter buffer control
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