GSM VoIP Gateway

CDMA/GSM VoIP Gateway

Smoothly transit between mobile and VoIP network


GSM/CDMA VoIP Gateway is a multi-functional product that effectively implements the smooth transition between mobile and VoIP networks. It has significant improvements not only in software features but also in the new hardware structure design. It is a fully compatible solution to your need and easy to use. Moreover, the built-in 4–1 antenna power divider saves space and is easier to install and maintain. The Dinstar UC2000 series VoIP GSM/3G/4G Gateways offer vast choices scalable from 1 to 32 channels, implement the state-of-the-art functionality in the market as always, and enable the smooth transit between mobile and VoIP networks. Integrated GSM/WCDMA/LTE connectivity and SIP protocol compatible with mainstream VoIP platforms, it is suitable for enterprises, multi-site organizations, call terminators, and areas with limited landlines like a rural areas to cut down telephony costs and enable easy & efficient communications. GSM Gateways are perfect for redundancy, T1 outages, or as a connection in places where inexpensive analog or SIP connections are not available. They are ideal for remote locations with a cellular connection but no Internet. If need be, with a GSM Gateway, you can create and run your entire remote phone system off of backup power and a cell tower. For added assurance, you can add a Go3 No Questions Asked replacement warranty!

Integrating GSM VoIP Gateway with SIP Softswitch

A SIP Softswitch, also known as an IP PBX, integrates with a VoIP gateway, such as a GSM VoIP Gateway, to allow the conversion of voice signals from the telephone to packets of data for transmission over data networks. A VoIP service is all about voice. VoIP service is the transmission of voice over the Internet. It is very effective for places with low bandwidth connections. When you use VoIP service, you don’t need to carry a heavy phone with you. It is very convenient. All you need is a VoIP service and a VoIP phone. You can easily use VoIP service to call your friends and families. VoIP services are very inexpensive and inexpensive. The GSM VoIP Gateway (GSM-W175) combines an IP-PBX integrated with GSM AMPS technology. The GSM VoIP Gateway is an IMSI-ID/IP-PBX portable system for small-medium enterprises emphasizing international roaming. With the GSM VoIP Gateway, you can use your own IP-PBX/Voice Concentrator on-site while having roaming voice calls on your GSM network. The VoIP Gateway is a cost-effective solution for managing the challenges of running a branch office. VoIP Gateways are typically multi-line IP PBX or gateway, often with voice mail capabilities or integrated voice prompts. Many enterprises employ VoIP Gateways as an alternative to traditional phone lines, but they are typically used for call routing. These gateways are usually deployed in small/branch offices and can be configured using an integrated web interface. VoIP Gateways are the best solution for the small office or branch office.


Physical Interfaces

Physical Interfaces


  • SIM Card Slot: 4 to 32 Channels
  • Ethernet Interface: 2 LAN 10/100M Base-Tx RJ45
  • Console: 1* RS232 115200bps
  • Antennas Connectors: SMA.
  • LED Indicators : PWR, RUN, Signal Strength, On/Off- hook
  • Reset Button
  • SIM Card Installation : Local SIM/Remote SIM with SIMBank

Mobile Feature

Mobile Feature

  • Frequency ranges
  • GSM: 850/900/1800/1900MHz
  • CDMA: 800Mhz
  • WCDMA:2100MHz(Optional)
  • SMS/SMSC/USSD
  • SMS Coding/Decoding: ASCII/UCS2
  • Open API Protocol
  • PIN Code Management
  • Call Duration Limitation for SIM Card/Single Call
  • Polarity Reversal (GSM)
  • Answer Delay (CDMA)
  • Carrier Selection
  • Caller ID Restriction for Outgoing Call
  • BCCH Management
  • Call Waiting
  • Call Forwarding

Network Protocol

Network Protocol

A network protocol is a set of established rules that dictate how to format, transmit and receive data so that computer network devices -- from servers and routers to endpoints -- can communicate, regardless of the differences in their underlying infrastructures, designs or standards. To successfully send and receive information, devices on both sides of a communication exchange must accept and follow protocol conventions. In networking, support for protocols can be built into software, hardware or both.

  • IP v4, UDP/TCP, PPPoE, DHCP, FTP / TFTP ARP, RARP, NTP
  • VPN PPTP
  • Encryption: RC4,MD5 (Coming Soon)
  • IP v6 (Coming Soon).
  • HTTP, Telnet

Voice Capability

G.711A/U law, G.723.1, G.729A/B
G.711A/U law, G.723.1, G.729A/B
Silence Suppression & Detection
Silence Suppression & Detection
Comfort Noise Generation(CNG)
Comfort Noise Generation(CNG)
Voice Activity Detection(VAD)
Voice Activity Detection(VAD)
Echo Cancellation(G.168)
Echo Cancellation(G.168)
Adaptive (Dynamic) Jitter Buffer
Adaptive (Dynamic) Jitter Buffer
Programmable Gain Control
Programmable Gain Control
Call Progress Tone Generation
Call Progress Tone Generation

SIP Characters and Physical Properties

SIP Characters
  • SIP V2.0 RFC3261
  • SDP RFC2327
  • Session Timer RFC4028
  • RTP/RTCP RFC3551
  • SIP Registration
  • SIP Trunk ( Peer Mode)
  • SIP Trunk Group
  • Gsm VoIP Gateway Gsm Gateways Provider
  • Ringback (Immediately, Alerting)
  • Configurable SIP Release Code
  • DNS SRV/A Query
  • Outbound Proxy
  • DTMF Mode: Signal/RFC2833
  • NAT Traversal
  • Dynamic NAT, Static NAT, STUN
Physical Properties
  • Power Supply
  • Input:100-240V,50-60Hz
  • Output: DC12V 4.0A
  • Power Consumption:
  • DWG2000E-4G: 20w
  • DWG2000E-8G: 25w
  • Temperature:
  • Operation: 0 ℃ ~ 45 ℃
  • Storage: -20 ℃ ~80 ℃
  • Operation Humidity:
  • 10%-90% No Condensation
  • Dimension(W/D/H): 250*156*32.5mm
  • Package Weight: 2.05kg
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