1.1 Overview

GSM VoIP gateway ETS32x4G is newly designed IP to GSM gateway supporting maximum 32 ports 128SIMs of GSM Voice interface, it can effectively realize the smooth transition between PLMN(GSM) and VoIP network. Compact cost effective design and system architecture of GSM Gateway ETS-32x4G provides customer satisfaction in high quality , performance and system reliance.

Mostly important, GSM Gateway ETS-32x4G features with new functions such as multi-SIM rotation, Human behaviour, BTS rotation,proxy server encryption for anti IP block, ETS bandwidth optimization(SBO) , Auto IMEI change and generation, auto activation SIM card etc.

This product uses the state-of-art technology voice compression and Smart QoS of ETS to maintain the maximum voice quality under fast internet line and slow internet line as well, thus It is an ideal gateway for heavy duty VoIP call termination (VoIP to GSM) and Origination (GSM to VoIP), it is fully compatible with leading soft switch and SIP server.

1.2 Main features

Support 32 GSM ports, up to 32 concurrent calls (1 Ports 4 SIM card ,total 128 SIM card)

Support GSM: Quad-band 850/900/1800/1900Mhz  

            CDMA: 450/ 800/ 1900Mhz optional

            3G/UMTS: 850/900/2100Mhz optional

Support Multi sim card rotation to avoid sim block

Support BTS rotation and lock

Support encryption for VOS for anti-block of IP port

Support Human behaviour function

Support SMS Sending / batch SMS Sending / receiving

Support USSD balance inquiry

Auto activation SIM card and recharge

Support IMEI change , auto IMEI change and generation

Automatically lock/open SIM card/ port according to its balance or alarm

Support Codec: G.711a/u law, G.723.1, G726,G.729AB

Support bandwidth optimization (optional)

Sys log output by USB interface for tracking records

User friendly web management interface

HTTP Web support for configuration and upgrade

SIM swapping

HTTP Web support ASR, ACD, PDD, SIM balance inquiry

Convert the number as preset rules /Number translation

Call routing / digit map

CDR management

IVR customized

BCCH management

SIM card rotation conditions:

1) According to accumulated call duration check (talk time)

2) According to accumulated idle&talking check(use time)

3) According to accumulated calls check (call counter)

4) According to consecutive call failure check(call failure)

5) According to consecutive low-duration calls check (Low duration)

Human behaviour conditions:

1) According to accumulated call duration check (talk time)

2) According to accumulated idle&talking check(use time)

3) According to accumulated calls check (call counter)