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GP-630 GSM VoIP Gateway for Remote/Local SIM Access

The GP-630 is GSM VoIP Gateway. It connects GSM Network with VoIP Network directly, and has function of two-way communicating by GSM to VoIP or VoIP to GSM. GP-630 provides local and remote access function to register to GSM system provider:  In remote access function, there are two ways to register. First way, insert SIM Card into general PC/SC Smart Card Reader, plug Smart Card Reader into PC’s USB port and connect to remote GP-630 by Internet. Another way is that you can use GP-060 and Android Smartphone to remote access to GP-630 via Wi-Fi Network and achieve mobilization. Both ways are not only convenient for remote management, but also saves expensive international roaming bills.



  1. Two –way communication by VoIP to GSM or GSM to VoIP.
  2. Compatible with SIP RFC543, RFC3261.
  3. Local & Remote SIM Card Access.
  4. se general PC/SC smart Card Reader, or GP-060 (with Android Smartphone) to remote access to GP-630.
  5. Save telephone and international roaming bills.
  6. IP or SIM Card ID verifies Access authority.
  7. Support UPLINK (GSM to VoIP), DOWNLINK (VoIP to GSM) Routing.
  8. Support VOICE REPORT IP function.
  9. Upgrade Firmware by Internet.
  10. Integrated web server for status and settings
  11. Support SIP Proxy, or point to point application.
  12. Fix or Free dialing function.
  13. Dial out Number from IP phone Call Number.
  14. 850/900/1800/1900 MHz.

Work with 3CX phone system

Configuration guide

Test : extention<->3CX<->
          VoIP Gateway<->GSM/PSTN

  See the application of GP-630
  Remote Access for smartphone

    VoIP:    Network Protocol:     Voice Quality:
  • Web Browser
  • IVR Interface
  • Uplink Route Setting (GSM to VoIP)
  • Downlink Route Setting (VoIP to GSM)

  • SIP v1 (RFC2543), v2(RFC3261)
  • DHCP Client/ PPPoE Client
  • DNS Client

  • VAD: Voice activity detection
  • CNG: Comfort noise generator
  • LEC: Line echo canceller
  • Packet Loss Compensation
  • Adaptive Jitter Buffer

    GSM:     NAT Traversal:
  • Quad-Band 850/900/ 1800/ 1900 MHz
  • Compliant to GSM phase 2/2+
  • Class 4 (2W@ 850/900 MHz)
  • Class 1 (1W@ 1800/1900MHz)
  • STUN