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GSM / 4G VoIP Gateways

A GSM gateway (mobile SIM gateway) holds one or more SIM cards and connects your VoIP phone system to the mobile network, so calls to and from mobiles go through SIMs instead of landlines. 3G Callnet supplies Dinstar, OpenVox and Synway gateways from 1 to 32 channels.

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GSM / 4G VoIP Gateways

What to look for

  • Channels – simultaneous calls (1, 4, 8, 16 or 32).
  • Network – GSM (2G), WCDMA (3G) or LTE (4G), and the bands your operator uses.
  • SIM slots – one per channel, or several per channel for SIM rotation (up to 128 slots).
  • SMS features – bulk SMS, SMS to email, HTTP API.
  • Compatibility – standard SIP, works with Asterisk, FreePBX, 3CX and other SIP servers.

Ranges we supply

  • Dinstar – UC2000 series, 1 to 32 channels, up to 128 SIM slots, HTTP API for bulk SMS.
  • OpenVox – SWG-2008, 2016 and 2032 series (8, 16, 32 channels), GSM/CDMA/LTE.
  • Synway – SMG4000 series, 4 to 32 channels, plus SIM Bank.

Related: IP-PBX · IVR Call Blasting · Product Finder

Dinstar GSM Gateways View page

Dinstar UC2000-VG WITH 128 SIM SLOTS GSM VoIP GATEWAY
Dinstar · GSM Gateway

UC2000-VG WITH 128 SIM SLOTS GSM VoIP GATEWAY

Dinstar UC2000G GSM/CDMA/WCDMA VoIP Gateway is a multi-functional product used to effectively implement the smooth transition between PLMN (Mobile) and VoIP network.The UC2000G gateway is designed for comfort, ease-of-use to satisfy necessary of customers. It is not only inherits tradition of quality voice communication over IP network but reduce the human resource of VoIP network deployment. It’s a cost-effective gateway for call termination (VoIP to GSM) and origination (GSM to VoIP). It is fully compatible with leading Soft-switch and SIP server.

  • 32 GSM Channels with 128 SIM Slots, Easy to Conduct SIM Rotation Locally
  • Auto Call/SMS Generation
  • HTTP API for Bulk SMS
Dinstar UC2000-VF GSM/CDMA/WCDMA VoIP GATEWAY
Dinstar · GSM Gateway

UC2000-VF GSM/CDMA/WCDMA VoIP GATEWAY

Dinstar UC2000F series GSM/CDMA VoIP Gateway is a multi-functional product used to effectively implement the smooth transition between mobile and VoIP network. Compare to UC2000B series product, UC2000F has great improvement not only in software features but also in new hardware structure design. With new designed pop-up SIM card slot, users are able to change SIM card easily without dismantling equipment. It is fully compatible with Dinstar SIMCloud/SIMbank solution and easy to use. Moreover, with built-in 4–1 antenna power divider which is saving space and easier to install and maintain.

  • 8/16 GSM/CDMA/WCDMA Channels
  • GSM: Quad-band 850/900/1800/1900MHz
  • CDMA: 800MHz
Dinstar UC2000-VE GSM/CDMA/WCDMA VoIP GATEWAY
Dinstar · GSM Gateway

UC2000-VE GSM/CDMA/WCDMA VoIP GATEWAY

Dinstar UC2000E series GSM/CDMA VoIP Gateway is a multi-functional product used to effectively implement the smooth transition between mobile and VoIP network. Compared to the UC2000C series, UC2000E has great improvement not only in software features but also in new hardware structure design. It is fully compatible with Dinstar SIMCloud/SIMbank solution and easy to use. Moreover, with built-in 4–1 antenna power divider which is saving space and easier to install and maintain.

  • 8 GSM/CDMA/WCDMA Channels
  • GSM: Quad-band 850/900/1800/1900MHz
  • CDMA: 800MHz
Dinstar UC2000-VE GSM/CDMA/WCDMA VoIP GATEWAY
Dinstar · GSM Gateway

UC2000-VE GSM/CDMA/WCDMA VoIP GATEWAY

Dinstar UC2000E series GSM/CDMA VoIP Gateway is a multi-functional product used to effectively implement the smooth transition between mobile and VoIP network. Compared to the UC2000C series, UC2000E has great improvement not only in software features but also in new hardware structure design. It is fully compatible with Dinstar SIMCloud/SIMbank solution and easy to use. Moreover, with built-in 4–1 antenna power divider which is saving space and easier to install and maintain.

  • 8 GSM/CDMA/WCDMA Channels
  • GSM: Quad-band 850/900/1800/1900MHz
  • CDMA: 800MHz
Dinstar UC2000-VA GSM VoIP GATEWAY
Dinstar · GSM Gateway

UC2000-VA GSM VoIP GATEWAY

Dinstar UC2000-1G is full functions VoIP gateway based on IP and GSM wireless network, which provides a flexible network configuration, powerful features, and good voice quality. It works for carrier grade, enterprise, SOHO, residential users for cost-effective solution.

  • 1 GSM ports
  • GSM: quad-band 850/900/1800/1900MHz
  • Web-based SMS/SMSC and USSD, open API
OpenVox GSM Gateway

OpenVox GSM/LTE Gateways View page

OpenVox SWG-2032 Series
OpenVox · GSM Gateway

SWG-2032 Series

OpenVox SWG-2032 series wireless gateways include SWG-2032 G/C/L.SWG-2032 series wireless gateways supports multiple codecs, including G.711U, G.711A, GSM, G.722, G.723,G.726, G.729 multiple coding. Our products support SMS messages sending, receiving, group sending andSMS to E-mail. The SWG-2032 series gateways will be 100% compatible with Asterisk, 3CX,FreePBX,FreeSWITCH SIP server and VOS VoIP operating platform. It can help users reduce telecommunicationsand communication costs.

  • GSM/LTE gateways supports 32 channels;
  • Supports multiple codecs;
  • Unique LCD screen design;
  • Built in Intel 4-core CPU, incredible processing capacity.
OpenVox SWG-2016 Series
OpenVox · GSM Gateway

SWG-2016 Series

OpenVox SWG-2016 series wireless gateways include SWG-2016 G/C/L.SWG-2016 series wireless gateways supports multiple codecs, including G.711U, G.711A, GSM, G.722, G.723,G.726, G.729 multiple coding. Our products support SMS messages sending, receiving, group sending andSMS to E-mail. The SWG-2016 series gateways will be 100% compatible with Asterisk, 3CX,FreePBX,FreeSWITCH SIP server and VOS VoIP operating platform. It can help users reduce telecommunicationsand communication costs.

  • Supports multiple codecs
  • Unique LCD screen design
  • Built in Intel 4-core CPU and has incredible processing capacity
  • Support SMS messages sending, receiving, group sending andSMS to E-mail.
OpenVox SWG-2008 Series
OpenVox · GSM Gateway

SWG-2008 Series

OpenVox SWG-2008 series wireless gateways include SWG-2008 G/C/L. The SWG-2008 series gateways is built in Intel 4-core CPU and has incredible processing capacity. SWG-2008 series wireless gateways support multiple codecs, including G.711U, G.711A, GSM, G.722, G.723, G.726, G.729 multiple coding. Our products support SMS messages sending, receiving, group sending and SMS to E-mail. The SWG-2008 series gateways will be 100% compatible with Asterisk, 3CX, FreePBX, FreeSWITCH SIP server and VOS VoIP operating platform. It can help users reduce telecommunications and communication costs.

  • GSM/CDMA/LTE gateways supports 8 channels
  • Supports multiple codecs
  • Built in Intel 4-core CPU, incredible processing capacity.
Synway GSM Gateway

Synway GSM/4G Gateways View page

Synway GSM/3G/4G VoIP Gateway
Synway · GSM Gateway

GSM/3G/4G VoIP Gateway

Synway SMG4000 VoIP gateway could be compliant with a variety of wireless/mobile protocols (2G/3G/4G), enabling interconnection between GSM/CDMA/UMTS/WCDMA/LTE network and VoIP network smoothly and safely. It is able to bridge wireless network with IP networks efficiently, regarding the high-demanding user requirements.

SMG4000 adapts self-propelled SIM card slots, advanced built-in VoIP processors and wireless modules, and helps enterprises and SPs launch diverse cost-efficient and flexible Wireless-to-IP communication systems. SMG4000 could be applied to a range of systems, including remote billing and charge, Mobility PBX, PSTN backup lines, VoIP localization, SMS platform and more.

  • Support 4/8/16/32 GSM/WCDMA/CDMA/UMTS/LTE Protocols
  • Superior Voice Quality by Designated DSP Chipsets
  • Support SMS and A Range of Mobile Applications
  • Integrated Gateway Plus Built-in SIM Bank
Synway SMG4004/4008 Wireless Gateway
Synway · GSM Gateway

SMG4004/4008 Wireless Gateway

Synway SMG4000 series GSM/WCDMA/CDMA/UMTS/LTE VoIP Gateway is a multi-functional product used to efficiently realize the smooth transition between mobile and VoIP network. Different from SMG2000/3000 series, SMG4000 adds more software features and adopts new hardware structure design. With new pop-up SIM card slot, users are able to change SIM card easily without disassembling equipment. Also, it is fully compatible with Synway SIMCloud/SIMbank solution.

  • Support 4/8 GSM/WCDMA/CDMA/UMTS/LTE Protocols
  • Superior Voice Quality by Designated DSP Chipsets
  • Support SMS and A Range of Mobile Applications
Synway SMG4016/4032 Wireless Gateway
Synway · GSM Gateway

SMG4016/4032 Wireless Gateway

Synway SMG4016/4032 GSM/WCDMA/CDMA/UMTS/LTE VoIP Gateway is a multi-functional product used to efficiently realize the smooth transition between mobile and VoIP network. Different from SMG2000/3000 series, SMG4000 adds more software features and adopts new hardware structure design. With new pop-up SIM card slot, users are able to change SIM card easily without disassembling equipment. Also, it is fully compatible with Synway SIMCloud/SIMbank solution.

  • Support 16/32 GSM/WCDMA/CDMA/UMTS/LTE Protocols
  • Superior Voice Quality by Designated DSP Chipsets
  • Support SMS and A Range of Mobile Applications
  • Integrated Gateway Plus Built-in SIM Bank
Synway SIM Bank
Synway · GSM Gateway

SIM Bank

SIMbank is Synway’s latest security device used jointly with Synway’s SMG4000 series wireless gateway through the network. With SIMbank, SMG4000 wireless can leverage SIM cards remotely, which realize interdependency and separation between the Wireless gateway and remote SIM cards. In addition, as a compliant software in SIMbank, SIMcloud centralized management system for unified management could administrate SMG4000 wireless gateway and SIMbank to form low-to-high density wireless-IP calling system

  • 1U height, 19-inch chassis
  • Embedded Linux system, and upgraded on remote
  • SIMcloud is software based on PC or server Simserver

Frequently asked questions

What is a GSM gateway?

A GSM gateway is a device with SIM card slots that converts calls between a VoIP/SIP phone system and the mobile network. Newer models support 3G (WCDMA) and 4G (LTE).

What is a GSM gateway used for?

Fixed-to-mobile calling from an office phone system, mobility extension (forwarding office calls to mobiles), sending and receiving SMS, and backup lines when other trunks fail.

How many channels do I need?

One channel carries one simultaneous call. Choose by peak simultaneous mobile calls: 1–8 channels for offices, 16–32 channels for contact centres.

What is a SIM bank?

A SIM bank holds many SIM cards in one place and serves them to gateways over the network, so SIMs can be managed centrally.

Are GSM gateways legal in India?

Using a GSM gateway inside your own organisation is common, but routing or terminating third-party or international traffic through SIM gateways to bypass licensed telecom interconnection is not permitted. Check your use case with your telecom operator and DoT rules before deployment.

Need a call center dialer, IVR, IP-PBX or VoIP hardware? Tell us what you need and get a quote from 3G Callnet, Mohali.