IP Phone: IP20

Feature

(SIP 2.0 Protocal (RFC3261
VOPTech IP Phones which adopts SIP protocols and multiple voice compression codec to directly convert analog voice into IP packet for internet transport, thus effectively using the existing bandwidth to provide PSTN quality voice service.

Backlight LCD Display
Adopt back-light  a 128×48 backlit graphical LCD,easy to show caller ID in Screen.

RJ9 Headset
IP20 could support RJ9 headset, which will be a good Option for call center appliance.

Support Expansion Module
features a 26 fully-programmable DSS key search function, each with a dual-color LED.

Power Over Ethernet
With support Power over Ethernet (PoE) function. These PoE ports can automatically detect and supply power with those IEEE 802.3af compliant Powered Devices.

Networking Feature
Support includes a variety of network mode of bridge mode, NAT bridge mode, hub mode, PPPoE for xDSL and support PoE. Phone so that a more flexible network configuration.

Specification

VoIP

Support SIP 2.0 (RFC3261) and IAX2 and correlative RFCs

4 SIP lines + 1 IAX2 line

Redundancy sip server capable

Hotline

Call Forward、Call transfer、Call hold、Call waiting

3-way Talking、Pickup、Join call、Redial、Unredial

Call Park、vport、click to dial

(DND(Do Not Disturb

Black List,Limit List

E.164 dial plan and customized dial rules

Voice

Codec:G.711(A-law or u-law) 、G722、G723、G726 and G729

Echo cancellation: Support G.168, and Hands-free can support 96ms, Hand free Speaker Phone

Support Voice Gain Setting, VAD, CNG

Tone generation and Local DTMF re-generation according with ITU-T

(AGC(Auto Gain Control

(AEC(Auto Echo Cancellation

(VAD (Voice Activity Detection

(CNG(Comfort Noise Generation

Networking

WAN/LAN: Support Bridge and Router model

NAT transverse：support STUN client

(Support basic NAT and NAPT(optional

Support PPPoE for xDSL

Support DHCP Client on WAN

(Support VLAN (optional: voice vlan/data vlan

QoS with DiffServ

Support main DNS and secondary DNS server

(Support DNS Relay(optional

Support SNTP Client

Network tools in telnet server: Including ping, trace route, telnet client

Management

Web ,telnet and keypad management

Management with different account right

Upgrade firmware through POST mode

Upgrade firmware through HTTP, FTP or TFTP

Safe mode provide reliability

(Support Auto Provisioning (configuration file

Support Syslog

Hardware

Graphic LCD

Wall mounting

Full duplex speaker

Interfaces

WAN * 1

LAN * 1

RJ9 Headset interface

Power jack * 1

Electric requirements

Power adapter: output DC 5V/1A