Hybertone GSM VoIP Gateway GOIP-4 with 4 GSM Channel and 128MB RAM



Model: GOIP-4

Hybertone VoIP GSM Gateway GoIP-4, is a VoIP GSM Gateway for call termination (VoIP to GSM) and origination (GSM to VoIP). It is SIP&H.323 based and compatible with Asterisk, Trixbox, 3CX, SIP Proxy Server, VoipBuster. It can enable to make 4 calls simultaneously from IP phones to GSM networks and GSM networks to IP phone.

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.


  • Application:

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:4
  • Power Adapter: DC 12V/2A
  • CPU: ARM11/700MHz
  • RAM: 128MB
  • Flash: 8M
  • GSM Frequency: 850/900/1800/1900MHz
  • Max power consumption: 12W
  • Weight: 0.85KG (Including AC/DC Adapter)
  • Size: 25cm*14cm*2.5 cm
  • Operating Temperature: 0 - 45?
  • Working Humidity:  10% - 90% non condensation

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