NetLink Gw800-SB series GSM/LTE VoIP Gateway is a multi-functional gateway that helps to effectively implement calls between 2G/3G mobile network and VoIP network. With new designed pop-up SIM card slot, users are able to change SIM cards easily without dismantling equipment. Moreover, with the opened API, the users could build their own application software to send SMS/USSD messages or bulk SMS messages, or push their text messages from email, HTTP, etc.

It has great performance in software features also in the new hardware structure design. The gateway provides low-cost, easy and flexible IP telephony solutions to enterprises, SMEs and business offices, etc.

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Key Features

  • 8 Channels GSM or LTE
  • Powerful Embedded CPU
  • Compatible with LTE-FDD/LTE-TDD/WCDMA/GSM Networks
  • Compatible with Mainstream VoIP Platform
  • Hot-Swappable SIM Cards
  • Voice over LTE (VoLTE)
  • HTTP API for SMS Application Integration
  • SMS to Email & Email to SMS
  • Flexible Dial Rules & Manipulation Rules
  • Auto CLIP
  • Remote SIMs Management (optional)




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8-channel VoIP

GSM/3G/4G Gateway

  • GSM/WCDMA/LTE support
  • Voice over LTE (VoLTE)
  • Hot-Swappable SIM Cards
  • Compatible with mainstream VoIP platform
  • Mobility Extension, never miss a call
  • SMS sending & receiving, SMS API
  • Credit Limit management
  • Auto CLIP



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  • Mobile connectivity for SME IP phone system
  • Mobile trunking for Multi-site offices
  • GSM/3G as voice backup trunks
  • Call termination for service providers
  • Land-line replacement for rural area
  • Bulk SMS service
  • Call Center / Contact Center Solution