GOIP32 32 port GSM Gateway

In stock
GOIP32 32 port GSM Gateway

Our GoIPs come with all the common network, VoIP, and GSM features and they have been widely tested for compatibility, stability, and reliability. In addition, we’ve developed our proprietary Remote SIM technology for SIM card management without inserting SIM cards to GoIPs. Together with the SMS Server and SIM Sever, you can now build your own system for voice traffics between VoIP and GSM or a SMS Messaging system based on your application requirements. In addition, each GoIP is equipped with a Remote Control client which enables a secure remote access method for technical support and GoIP management. All of the above features are available at no additional charges.


The concept diagram below shows a simple VoIP network for call center application.  It consists of a softswitch/IP PBX and VoIP clients such as an IP phone, a call center operator, and GoIPs.  All VoIP clients are configured to register to the softswitch/IP PBX.  For the GoIPs, each GSM channel is inserted with a valid SIM card in order to access the GSM network.  Both incoming and outgoing calls between the VoIP and GSM/PSTN networks can now be realized.

Key Features

Call from VoIP to GSM or GSM to VoIP

Bulk SMS

Auto check balance and recharge

Remote SIM Control

Outbound call from voip

Inbound call from gsm

Remote management

Software Features

VoIP Protocols: SIP2.0

Audio Codecs: g711(alaw/ulaw), g729, g723.1

DTMF format: SIP INFO, RFC2833, Inband

Packet Loss Concealment

Programmable Jitter Buffer: Fixed, Dynamic, Adaptive

Network Connection: DHCP, PPPOE, Static IP

STUN Server

Support English, Chinese

Support Signaling encryption

Support media encryption

Support Media NAT Traversal

Support Remote control

Hardware Features

GSM Channels:32

Power Adapter: DC 12V/4.5A

CPU: ARM11/700MHz

RAM: 128MB

Flash: 8M

GSM Frequency: 850/900/1800/1900MHz

Max power consumption: 38W

Weight: 5.5KG (Including AC/DC Adapter)

Size: 36.2cm*21cm*6.5cm

Operating Temperature: 0 - 45℃

Working Humidity:  10% - 90% non condensation

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