Yeaster TG 400 is actually a concise 4 networks VoIP GSM gateway that connects GSM network with VoIP. Simple face and it is also that ideal item for little and medium-sized enterprises with heavy needs of phone calls to cellular systems. The solution is a cost-saving relationship more affordable and also effective.


1) Cost savings – tremendously save phone bills with mobile-to-mobile calls and LCR.

2) Straight back up – Operate being an economical back-up once the landline network decreases.

3) Very easy to install – Everything can be easily arranged during the internet-based management software.

4) Easy to integrate High that is– compatibility big IP PBX and Softswitch brands.


  • Wide range of GSM channel (Max): 4
  • Community sort: 850/900/1800/1900MHz
  • Protocol: SIP (RFC3261), IAX2
  • Transport Protocol: UDP, TCP, TLS, SRTP
  • DTMF: RFC2833, SIP TIPS, In-band
  • Codec: G.711 a/u-law, G.722, G.726, G.729a, GSM, ADPCM, Speex
  • Echo Termination: ITU-T G.168 LEC
  • LAN: 1 (10/100Mbps)
  • System: Static internet protocol address, DHCP Clients, Firewall, VLAN, DDNS, QoS, OpenVPN Yeaster TG 400
  • NAT Traversal: Static NAT, STUN
  • Dimensions: 213x160x44mm
  • Power-supply: AC 100-240V 50/60Hz 0.5A MAX
  • Operation selection: 0° to 50°C, 32° to 122° F
  • Storage space selection: -20° to 65°C, 4° to 149° F
  • Dampness: 10-90% non-condensing


  • SIP Host and SIP Trunk Area supported
  • SIP Equal Setting supported
  • Contacting Type: VoIP to GSM, GSM to VoIP
  • GSM Ports Party Handle, VoIP Trunk Area Team
  • Incoming /Outgoing Routing guidelines
  • SMS Shipping and also Getting
  • Pass Mass SMS
  • Achieve Change
  • USSD
  • PIN Change
  • Call Improvements Build Generation
  • Company Variety: Auto/Manual
  • Balances Alarm
  • Person ID/CLIR
  • Dark Record
  • Hotline
  • Name Length Restriction
  • Name Move
  • Call Straight Back
  • Contact Standing Screen
  • Details Record (CDR)

  • Contact Period Restriction for SIM Card/Single Phone call

  • LCR (Least Cost Routing)

  • Best sound  quality (EFR awesome sounds)

  • SIP Response Code Turn

  • Open up API for SMS and USSD

  • Actual Open API Process (Based on Asterisk)

  • IP Blacklist

  • System Fight Alert

  • Program Logs

  • Online setup

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