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32 Channels 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.
  • GoIP-32


  • 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

    • GSM Channels:32 ports

    • Power Adapter: DC12V/4.5A

    • CPU: ARM11/700MHz

    • RAM: 128M

    • Flash:  8M

    • GSM Frequency: 850/900/1800/1900MHz

    • Max power consumption: 38W

    • Net weight: 1.7KG

    • Size: 36.2*21*6.5cm

    • Operating Tempreture: 0-45℃

    • Working Humidity:  10%-90% non condensation

    • VoIP Protocols: SIP V2, H.323 V4

    • 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