Yeastar TG100 VoIP GSM Gateway

Connect GSM or WCDMA or 4G LTE to VoIP networks to provide two-way communication


  1. GSM Voice Calls
  2. VoLTE for HD Calls
  3. Mobile Connectivity for SMB
  4. Top Quality and Reliability
  5. Maximum Cost Reduction



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Models* TG100 TG200 TG400 TG800 TG1600
Number of Ports 1 2 4 8 16
GSM Frequency** 850/900/1800/1900 MHz
WCDMA Frequency** 850/1900 MHz, 850/2100 MHz, 900/2100 MHz
4G Data
4G LTE Band** Don’t support 4G LTE Depending on the module type. Don’t support 4G LTE
Protocol SIP, IAX2
Antenna Splitter (4 in 1) Support
Transport UDP, TCP, TLS, SRTP
Voice Codec G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex
DTMF Mode RFC2833, SIP Info, In-band
Echo Cancellation ITU-T G.168 LEC
Calling Type Termination (VoIP to GSM/WCDMA), Origination (GSM/WCDMA to VoIP)
Console Port 1
Network Protocol FTP, TFTP, HTTP, SSH
LAN 1 10/100 Mbps Ethernet Interface 2 10/100 Mbps Ethernet Interfaces
NAT Traversal Static NAT, STUN
Network DHCP, DDNS, Firewall, OpenVPN, Static IP, QoS, Static Route, VLAN
Operation Range 0°C to 40°C, 32°F to 104°F
Power Supply DC 12V, 1A AC 100-240V
Storage Range -20°C to 65°C, -4°F to 149°F
Dimensions (L × W × H) (mm) 110 x 70 x 24 213 x 160 x 44 340 x 210 x 44 440 x 250 x 44
Humidity 10-90% non-condensing

Key Features

    1. 1 Stage/2 Stage Dial
    2. Call Back
    3. Call Duration Limitation
    4. Call Status Display
    5. Carrier Selection: Auto/Manual
    6. Firmware upgrade by HTTP/TFTP
    7. GSM/CDMA/UMTS Ports Group Manage
    8. Incoming /Outgoing Routing rules
    9. Network Attack Alert
    10. Open API for SMS and USSD
    11. PIN Modify
    12. Send Bulk SMS
    13. SIP Peer Mode: Support
    14. SIP server for IP phones: Support
    15. SMS Center
    16. System Logs
    17. VoIP Trunk Group
    18. Block List
    19. Balance Alarm
    20. Call Detail Record (CDR)
    21. Call Progress Tone Generation
    22. Call Transfer
    23. Caller ID/CLIR
    24. Configure backup/restore
    25. Gain Adjustment
    26. Hotline
    27. IP Blocklist
    28. NTP
    29. Packet Capture
    30. Real Open API Protocol (Based on Asterisk)
    31. Session Timer
    32. SIP Response Code Switch
    33. SIP Trunk: Support
    34. SMS Sending and Receiving
    35. USSD
    36. Web based configuration


GSM Trunking

TG adds GSM trunks transform fixed-to-mobile calls to mobile-to-mobile calls. It could significantly reduce the telecommunication expenses. Meanwhile, TG brings valued-added features such as SMS, callback, and call forwarding, etc. The GSM trunking is also a low-cost alternative to landlines in instances where fixed line communication is not available.

Yeastar TG100 VoIP GSM Gateway
Yeastar TG100 VoIP GSM Gateway

Wireless PBX Solution

Add wireless trunk to business phone system Reduce call expenses and ensure business continuity

GSM, 3G, and 4G connectivity not only reduce telephone expenses but also provide a crucial communication link for offices lacking fixed lines. Thanks to the advanced modular technology, S-Series VoIP PBX allows businesses to add GSM or WCDMA or 4G LTE networks easily and cost-effectively. Yeastar S-Series and P-Series flexibly support up to 500 users and save telephone expenses for enterprises big and small.

Solution Benefits

Essential Connectivity

Provide wireless trunk as the primary trunk where landlines are not available or a backup trunk to ensure connectivity

Reduca Call Costs

Convert fixed-to-mobile calls to mobile-to-mobile to reduce cost, and route calls to the most cost-efficient carriers

Flexible and Scalable

Easily expand the number of users and trunks to fulfill any growing communication needs in the future.

Easy to Manage

Efficiently manage the system through Web Interface, even for dispersed offices and remote workers

Integrated SMS Solution

Empower business with SMS notification, Email to SMS/SMS to Email features


  • Support up to 500 users
  • Support up to 6 GSM/3G/4G trunks
  • GSM Frequency: 850/900/1800/1900MHz (quad-band)
  • WCDMA Frequency: WCDMA 900/2100MHz or 850/2100MHZ or 850/1900MHZ
  • Support VoLTE (depending on carrier support)
  • Support VoIP, FXO, ISDN PRI and ISDN BRI
  • Support UC Softphone and remote workforces

Bulk SMS Service

TG Bulk SMS feature is a great tool in implementing SMS campaign. With TG, sending bulk SMS is only clicks away. Enter the desired phone numbers, the SMS content in the TG Web GUI, there you go! The Bulk SMS feature is easy to use, fast, and reliable. TG also provides API to connect an external SMS client.

Yeastar TG100 VoIP GSM Gateway
Yeastar TG100 VoIP GSM Gateway

Integrated SMS Solution

Send SMS for SMS marketing and notification

SMS is effective in promoting business as it reaches your customers directly; it’s also effective in notification when an event occurs. The potential of SMS is huge. Positioned to respond to this trend, Yeastar SMS solution is integrated with Yeastar PBX system and VoIP GSM Gateway to empower businesses with SMS notification, Email to SMS/SMS to Email, and bulk SMS sending convenience.

Bulk SMS Sending Solution

  • Send bulk SMS in the Web GUI: easy to create and execute
  • Used to introduce special offers, manage customer relations, etc. or alerts and notifications
  • Easy to use, fast, and reliable
  • Provide an API to connect an external SMS client

IP-PBX Integrated SMS Solution

  • SMS are sent from GSM/WCDMA/4G LTE trunk cost-effectively
  • Receive SMS notifications about PBX events and emergencies and take actions accordingly.
  • Convert an SMS to email and vice versa
  • Integrated SMS solution: lightweight and easy to use

TG as a SIP Registrar

TG can work as SIP registrar for IP phones to register. For small offices with only a handful of people, instead of purchasing IP-PBX, a GSM VoIP gateway and a few IP phones can already fulfill the need to make and receive calls. TG provides GSM trunks for outbound and inbound calls and bulk messaging feature to expand business.

Yeastar TG100 VoIP GSM Gateway
Yeastar TG100 VoIP GSM Gateway


Solution for Temporary Office

Achieve easy and cost-effective communication for small office and temporary office


Yeastar TG Series VoIP GSM Gateway works as a SIP registrar

TG Series VoIP GSM Gateway can work as SIP registrar for IP phones to register. For small offices with only a handful of people, instead of purchasing IP-PBX, a GSM VoIP gateway and a few IP phones can already fulfill the need to make and receive calls. TG provides GSM trunks for outbound and inbound calls and bulk messaging feature to expand business.

Why choose us for temporary office

Mobile Connectivity

Without the restrictions of physical location, users can dial out with GSM trunks of TG Series VoIP GSM Gateway and save the cost of PSTN local cabling.

Advantageous SMS Service

Enterprises will be able to send and receive SMS and send bulk SMS via TG Series VoIP GSM Gateway with a low cost.

Future-proof solution

TG Series VoIP GSM Gateway and IP phones can still be used when the office expands and requires an IP telephone system.

Benefits from Yeastar solutions

“We chose Yeastar TG gateway because it’s cost-effective and reliable. We only need to add some IP phones.” Proven communication technology and reliability of Yeastar solution for temporary office has been recognized by Singapore Grand Prix.

  • Easy to use
  • Mobile Trunkings
  • Bulk SMS Service
  • Interoperability

Easy to use

Simple and intuitive Web-based configuration saves you loads of time

Mobile Trunkings

Add GSM/WCDMA trunkings for business making high number of calls to mobile networks

Bulk SMS Service

Great tool for enterprises to manage customer relations and introduce special offers with a low cost


Interoperable with a broad list of softswitch, PBX, and IP-PBX like Yeastar, Elastix and Lync Server

Yeastar TG Series
VoIP GSM/3G/4G Gateway for Cost Reduction

Yeastar TG is a series of VoIP GSM/3G/4G gateway connecting GSM or 3G WCDMA or 4G LTE network to VoIP network directly and can support two-way communication: GSM/3G/4G to VoIP or VoIP to GSM/3G/4G. It is the best GSM trunking solution for IP-based telephone systems, the best fallback solution in case of landlines outages, and also the best alternative for areas with limited landline or SIP connection.


Mobile networks

Link up PBX systems with GSM or 3G WCDMA or 4G LTE networks


Send and receive SMS messages via Web interface and support bulk SMS

Easy to install

Everything can be easily set up in the Web based management

Cost saving

Save phone bills tremendously with mobile-to-mobile calls and SIP trunks

Back up

Work as a cost-effective backup when the landline network goes down

Easy to integrate

High compatibility with most IP-PBX and softswitches


  1. TG100:1 GSM or 3G Channel*
  2. TG200: 2 GSM or 3G or 4G Channels*
  3. TG400: 4 GSM or 3G or 4G Channels*
  4. TG800: 8 GSM or 3G or 4G Channels*
  5. TG1600: 16 GSM or 3G Channels*
  6. TG100, TG200, TG400: 1 10/100 Mbps Ethernet Interface
  7. TG800, TG1600: 2 10/100 Mbps Ethernet Interfaces
  8. Optional Antenna Splitter (4 in 1 antenna):
    TG400, TG800, TG1600

Voice Processing

  1. Protocol: SIP, IAX2
  2. Transport: UDP, TCP, TLS, SRTP
  3. Voice Codec: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex
  4. Echo Cancellation: ITU-T G.168 LEC
  5. DTMF Mode: RFC2833, SIP INFO, In-band
  6. SIP Server for IP Phones Included
  7. SIP Response Code Switch
  8. Call Progress Tone Generation
  9. 1 Stage/2 Stage Dial

System Features

  1. Mobile Ports Groups
  2. VoIP Trunk Group
  3. Incoming /Outgoing Routing rules
  4. Call Blocklist
  5. Hotline
  6. AutoCLIP
  7. Call Duration Limitation
  8. Call Transfer
  9. Call Back
  10. Call Detail Record (CDR)
  11. Call Status Display
  12. NTP
  13. IP Blocklist
  14. Network Attack Alert
  15. Packet Capture
  16. System Logs

Mobile Features

  1. GSM Frequency: 850/900/1800/1900MHz
  2. WCDMA Frequency: 850/1900MHz,
    850/2100MHz, 900/2100MHz
  3. 4G LTE Band: depends on the module type
  4. VoLTE if the Carrier Supports
  5. SMS Sending and Receiving
  6. Send Bulk SMS
  7. SMS Center
  8. Gain Adjustment
  9. USSD
  10. PIN Modify
  11. Carrier Selection: Auto/Manual
  12. Talk Time Alarm
  13. Caller ID/CLIR
  14. Open API for SMS and USSD

Network & Management

  1. Network Protocol: FTP, TFTP, HTTP, SSH
  2. NAT Traversal: Static NAT, STUN
  3. Static Route
  4. OpenVPN
  5. Firewall
  6. VLAN
  7. QoS/ToS
  8. DDNS
  9. Configure Backup/Restore
  10. Firmware Upgrade by HTTP/TFTP
  11. Web based Configuration


Model Size (mm) Power Supply
TG100 110x70x24 DC 12V, 1A
TG200 213x160x44 AC 100-240V
TG400 213x160x44 AC 100-240V
TG800 340x210x44 AC 100-240V
TG1600 440x280x44 AC 100-240V
  • Operation Range: 0°C to 40°C, 32°F to 104°F
  • Storage Range: -20°C to 65°C, -4°F to 149°F
  • Humidity: 10-90% non-condensing

Additional information

Dimensions 110 × 70 × 24 cm

TG100 1 port, TG200 2 ports, TG400 4 ports, TG800 8 ports, TG1600 16 ports


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