User manual

1.2 Features and specification

Features

- ITU-T H.323 v4 compliance

- Automatically Gatekeeper Discovery

- Secondary GK support

- Peer-to-Peer mode (non-Gatekeeper)

- Support auto-attendant (2nddial Tone / Voice greeting)

- Dimensions : 221mm(W)*42mm(H)*217mm(L)

- Line hunting

- 2/4/6 RJ-11 FXO ports

- E.164 (Telephone Number Plan)

- DTMF dialing

- DTMF detection/generation

- TFTP software upgrade

- Remote configuration/reset via Telnet

- LED indication for system status

- LAN interface : One RJ-45 connector of 10Base-T

- Microsoft Netmeeting v3.0 compatible

- Support static IP and DHCP

- QoS by ToS (Type Of Service)

- SNTP (Simple Network Time Protocol)

- Security: Password setting

Audio feature

- Codec -- G.711 a/µlaw, G.723.1 (6.3K/bps), G.729A (Optional)

- VAD (Voice Activity Detection), CNG (Comfort Noise Generate)

- G.168/165-compliant adaptive echo cancellation

- Dynamic Jitter Buffer

- Bad Frame Interpolation

- Call Transfer (H.450.2)

- Call Forward (H.450.3)

- Call Hold (H.450.4)

- Gain Settings

- Provide Call Progress Tone: Dial tone, busy tone, call-holding tone and

ring-back tone