D-Link DVG 2102 S VoIP Telephone Adapter 

This VoIP TA lets you allocate network resources while guaranteeing Quality of Service (QoS). Network bandwidth management delivers smooth and clear voice communication over the Internet while increasing productivity and efficiency by tailoring your system to specific demands such as time-sensitive VoIP and multimedia applications.

DEVICE INTERFACES

2 RJ-11 FXS phone ports

2 RJ-45 10/100BASE-TX LAN

port with auto-MDI/MDIX

GENERAL FEATURES

3-way call conference (local mixer)

Call-parking

Call Back on Busy Digit Map

Direct IP-to-IP Call without SIP Proxy

Echo cancellation (Echo tail 64ms)

Hot Line and Warm line calling Includes a phone book with speed dial

Music on hold

MWI

Multi SIP Account (up to 3 proxy)

Need to support IP-IP call (P2P: RTP connection) without proxy (ex. phone book)

VMWI-Via FSK

CALL FEATURES

Anonymous Call Blocking

Call Block and Filter

Call Forwarding - Always

Call Forwarding - Busy

Call Forwarding - No Answer

Call Forwarding - Follow Me

Call Forwarding - Unconditional

Call Forwarding - Unavailable

Call History (Call status)

Call Hold

Caller ID (Proxy support)

Caller ID blocking

Call Pick Up

Call Return

Call Transfer (Proxy support)

Call Time

Call Park & retrieve

Call Waiting

Do Not Disturb

TELEPHONY FEATURES

Codec: G711μ/A-law,

G729A/B/AB, G.723(6.3/5.3

kbps), G.726(40)

Echo cancellation

Voice Activity Detection (VAD)

for G.711/723/729

Comfort Noise Generation

(CNG) for G.711/723/729

Out of Band DTMF event

Gain Control (incoming/ outgoing).