PRODUCT SPECIFICATIONS
Yeastar YST-TG800LTE-A 8-Channel 4G LTE VoIP Gateway
The Yeastar YST-TG800LTE-A connects an IP-based telephone system to cellular voice networks. With eight mobile channels and eight SIM card slots, it provides inbound and outbound cellular trunks for business communications.
Designed for offices and branch locations, this gateway supports SIP and IAX2 integration, SMS messaging and web-based configuration. It can provide an alternative voice route when fixed-line service is unavailable, with call costs determined by your cellular plans.
Key Features
- Eight 4G LTE mobile channels and eight SIM card slots.
- SIP and IAX2 support for VoIP integration.
- VoLTE support when supported by the carrier and installed module.
- Send, receive and manage SMS messages through the web interface.
- Bulk SMS and an API for external SMS applications.
- Two 10/100 Mbps RJ45 Ethernet ports.
- Configurable incoming and outgoing call routing.
Cellular Voice and VoLTE
The LTE-A configuration uses the regional Module-A band profile, with LTE bands B2, B4 and B12. Confirm local coverage, device acceptance and voice service with your carrier before purchasing. Matching LTE bands alone does not guarantee VoLTE operation.
Connectivity and Call Routing
Connect the gateway to your IP network through its Fast Ethernet interfaces. Configure mobile trunk groups and routing rules to direct calls between your PBX and cellular lines. Supported call functions include caller ID/CLIR, call transfer, callback and call duration limits.
SMS and Network Management
The web interface provides SMS management, call detail records, system logs and configuration backup and restore. Network features include VLAN, QoS, firewall, OpenVPN and NAT traversal.
Power and Installation
The gateway uses 100–240V AC power. Install it indoors with ventilation and grounding according to Yeastar's instructions. PoE powering is not documented.
Important Operating Limitations
This is a cellular voice and SMS gateway. Yeastar lists no 4G data service for the TG series; it should not be purchased as an LTE broadband router. Its Ethernet interfaces support 10/100 Mbps, rather than Gigabit Ethernet.
Ideal Applications
- Adding cellular voice trunks to an IP PBX.
- Providing an alternative voice route during fixed-line outages.
- Business SMS notifications and messaging integrations.
- Voice connectivity at locations with limited fixed-line service.
Compatible Products
PBX integration requires a correctly configured VoIP trunk, matching signaling and media settings, IP connectivity, and inbound and outbound call routes.
- Yeastar S50 IP PBX VoIP Phone System – Supports SIP trunk integration using Yeastar's documented S-Series-to-TG gateway configuration approach.
Important: This gateway connects to the PBX over Ethernet; it is not an internal PBX expansion module. Cellular operation also requires supported SIM cards, suitable coverage, and carrier approval for the installed module and voice service. Confirm VoLTE provisioning before deployment.
Technical Specifications
General
- Brand: Yeastar
- Product SKU: YST-TG800LTE-A
- Manufacturer Model: TG800LTE-A
- Product Type: 4G LTE VoIP voice and SMS gateway
LTE / Cellular
- Mobile Channels: 8
- SIM Card Slots: 8
- Regional Configuration: LTE-A / Module-A
- LTE Bands: B2, B4, B12; confirm installed module
- VoLTE: Carrier- and module-dependent
- Messaging: SMS sending/receiving, bulk SMS, SMS API
- 4G Broadband Data: Not supported according to the TG series product table
Ethernet
- Ports: 2 RJ45 Ethernet ports, LAN and WAN
- Interface Speed: 10/100 Mbps adaptive
VoIP and Voice Processing
- Protocols: SIP, IAX2
- Transport / Security: UDP, TCP, TLS, SRTP
- Voice Codecs: G.711 A-law/U-law, G.726, G.729A, GSM, ADPCM, Speex
- DTMF: RFC2833, SIP INFO, in-band
- Echo Cancellation: ITU-T G.168 LEC
Power
- Power Supply Input: 100–240V AC
- PoE: Not documented; use the supplied AC power connection
Environmental
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Storage Temperature: -20°C to 65°C (-4°F to 149°F)
- Humidity: 10–90%, non-condensing
Installation and Included Parts
- Installation: Desktop or rack installation using mounting hardware
- Documented TG800 Package: Gateway, power cord, network cable, mounting ears, screws, grounding stud and nut, rubber feet, warranty card and quick start guide
- Antenna Package: Eight antennas or two antenna splitters, depending on package configuration
Download Yeastar TG800 / TG Series VoIP 4G Gateway Datasheet (PDF)
