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Grandstream FXO 8 PORT


Dinstar UC 2000 VG 32 Port VoLTE Gateway

Synway SMG 400 4G 4ports GSM Gateway

Quick Overview


  • GSM/CDMA/LTE support

  • Support 2g/3g/4g wireless network

  • DSP-enabled voice optimization to assure
    crystal voice quality and echo cancellation

  • High Flexibility and Scalability

  • Support complete range of SIP trunking worldwide

  • Auto Provisioning

  • Support SMS, mobility PBX, VoIP localisation and more

  • 1 Year Warranty


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 Synway SMG4000 Wireless 4 port Gateway, could be compliant with a variety of wireless/mobile protocols (2G/3G/4G), enabling interconnection between GSM/CDMA/WCDMA/LTE network and VoIP network smoothly and safely. It is able to bridge wireless network with IP networks efficiently, regarding to 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 also be applied into a range of systems, including remote billing and charge, Mobility PBX, PSTN backup lines, VoIP localization, SMS platform and more.

Technical Specification

Key Features 
•  4 GSM/CDMA/LTE Channels • Support to different mobile networks: GSM: 850/900/1800/1900MHz CDMA: 800MHz
UMTS: 850/900/1900/2100MHz •  HTTP API for SMS Application Integration •  SMS to Email and Email to SMS PIN management ,

Voice processing
Silence suppression and detection, CNG (Comfort Noise Generator) support, VAD (Voice Activity Detection) support, Echo cancellation (G.168), up to 128ms, Self-adaptive dynamic buffering, Call progress tone generation, AGC (Automatic Gain Control) support
SIP V2.0 RFC3261, SDP RFC2327, Session Timer RFC4028, RTP/RTCP RFC3551, SIP registration, SIP trunk (Point-to-Point), SIP trunk group
Ringback (Immediate/normal), SIP/GSM release cause configurable, DNS SRV/A query, Out-of-stack agent, DTMF mode: Signal/RFC2833,
NAT traversal, Dynamic NAT, Static NAT, STUN
Configuration management based on WEB, Configuration backup/restore, Interface in Chinese/English, Firmware upgrade via HTTP/TFTP, Password modification for WEB sign-in, Factory settings restore,CDR and tracking information output, Syslog
Ping and Tracet tests based on WEB, Transport Protocol Count: TCP, UDP, RTP, VoIP Call Count, PSTN Count: ASR, ACD, PDD
Voice loopback test, IVR Customizable, System Log, Centralized cloud-platform integrated management
Physical Interface SIM Card Socket: 4/8-port, Ethernet interface: RJ45, 2 ETH, 10/100M Base, CONSOLE: RJ45, RS232, 115200bps
Antenna interface: SMA, Status indicator: PWR, RUN, ALM, Channel state, Signal strength, ACT per network, LINK status., Reset button
Network protocol
Console Port
•Amount: 1 RJ-45 (RS-232), Baud rate: 115200bps, Data bits: 8 bits, Stop bit: 1 bit, Parity unsupported, Flow control unsupported

Input voltage: DC 12V ± 10%
Input current: ≥3A

Environmental Temperature(Operation): 0 ℃ ~ 55 ℃ (Storage): -20 ℃ ~85 ℃
Operation Humidity: 8 %-90%  No Condensation

Dimension(W/D/H): 260×153×30mm
Weight:1.2 kg


Additional Information

Manufacturer No
Country of Manufacture
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