ETG Series

E1/T1 ISDN Trunking Gateway

The brand new ETG Series analog VoIP gateways are feature-rich and cost-effective products designated for telecom operators to provide telephony services with security-enhanced capabilities in the modern complex networks.

ETG series E1/T1 Ports trunking gateway is the ideal cost effective solution for carrier and enterprise applications. Whether it is connected to PSTN or to PBX, the trunk Gateway provide a reliable and bandwidth-efficient solution that leverages the interoperability, scalability and enhanced services capability of industrial standard SIP protocol.

.SIP to ISDN and ISDN to SIP gateway
.24/30/48/60 digital voice channels
.ETSI, DMS, NET2, 5ESS compatible
.1U x 19-inch, front access rack-mountable
.3 x 100Base-TX interfaces
.WEB UI, remote upgradeable

Model

-     ETG 2531: 1 WAN + 2 LAN + 1 ISDN E1/T1

-     ETG 2532: 1 WAN + 2 LAN + 2 ISDN E1/T1

Voice Feature

-     G.711 a/μ, G.726(32K), G.729A, G.723.1

-     Silence Suppression and Detection

-     Comfort Noise Generation (CNG)

-     Voice Activity Detection (VAD) 

-     Echo Cancellation (G.168) 

-     Adjustable jitter buffer

-     Adjustable packet time (by Codec type)

-     Programmable Gain Control

-     Adjustable call progress tone volume

SIP Method Support

-     ACK, BYE, CANCEL, INFO, INVITE, MESSAGE, NOTIFY, OPTIONS, PING, PRACK, PUBLISH, REFER, REGISTER, SUBSCRIBE, UPDATE

SIP Call Features

-     Peer to Peer Call

-     Call Forward – unconditional, busy, no answer

-     Do Not Disturb

-     Speed Dialing

-     Hot Line and Warm Line

SIP Call Management

-     Support Outbound Proxy

-     Support SIP Compact Form

-     SIP Registration Failover

-     Group Hunting

-     P-Asserted-Identity per RFC3325

-     Privacy Mechanism per RFC3323

-     Session Timers (Update / Re-invite)

-     DNS SRV Support

-     Call Types: Voice / Modem / FAX

-     User Programmable Dial Plan 

-     CDR by RADIUS client

-     Manual Peer Table (for P2P calls)

-     E.164 Numbering, ENUM support

SIP Account Management

-     By channel registration

-     By E1/T1 registration (share account)

-     Invite with Challenge

-     Support RFC3986 SIP URI format

Physical Interface

-     WAN : 1 x 100 Base-Tx, auto cross-over, auto speed negotiation, RJ-45 connector

-     LAN : 2 x 100 Base-Tx switch, auto cross-over, auto speed negotiation, RJ-45 connector

-     E1/T1 : RJ48C 

-     Factory default and Reset button 

Telephony Specification

-     In-Band DTMF, Out-of-Band DTMF Relay (RFC2833 or SIP INFO)

-     Caller ID

-     T.30 FAX passthrough, T.38 Real Time FAX Relay

LED Indicators

-     Power, Alarm, VoIP, Run, AIS, RAI, LINK, LOS, LBK, WAN, LAN

General Information

-     Dimensions : 44.5 (W) x 25 (D) x H 4.5 (H) mm

-     Weight : 3.8kg

-     Power : AC 100~240 V 50/60Hz input

-     Operating temperature :0°C~ 45 °C

-     Storage temperature : - 20°C~ 70 °C

-     Operating Humidity : Up to 90% RH, non-condensing

NETWORK FEATURES AND MANAGEMENT

IP Network Specification

-     WAN: Static IP, PPPoE, DHCP, PPtP

-     Network Protocol Support:

-     IP, TCP, UDP, TFTP, FTP, RTP, RTCP, ARP, ICMP, NTP,DHCP, STUN Client, HTTP, HTTPS, DNS, DNS SRV, Telnet

-     IPv4 , IPv6(optional)

-     DDNS Support

-     QoS Support:

Ÿ      WAN: DiffServ, IP Precedence

Network Security Specifications

-     DIGEST Authentication

-     MD5 Encryption

-     DoS Protection

-     Caller Filter by IP address

Management

-     Web Based Configuration

-     Telnet command line interface (CLI)

-     IVR Configuration

-     FTP / TFTP / HTTP Software Upgrade

-     Configuration Backup and Restore

-     SNMP V3/ V2c/ V1(optional)

Digital Interface

-     Supported Switch Types: ETSI, DMS, NET2, 5ESS

-     Line coding: 

      E1 ISDN PRI: HDB3

      T1 ISDN PRI: B8ZS, AMI

-     Line Impedance: 
    E1 120 Ohm, Balanced 
           75 Ohm, UnBalanced (optional)
    T1 100 Ohm

-     Framing :

      E1: ITU-T G.704

    T1: SF, SLC96, ESF

E1 Loopback

-     Digital loopback (DLBK)

-     Remote loopback (RLBK)

-     ST-BUS loopback (SLBK)

-     Payload loopback (PLBK)

-     Metallic loopback (MLBK)

-     Per time slot Local loopback (LTSL)

-     Per time slot remote (RTSL)