Yeastar GSM Module 1-Port Quad-Band for S-Series PBX

Yeastar GSM Expansion Module

The Yeastar GSM Module provides a single channel of cellular voice connectivity for compatible IP PBX systems and VoIP gateways. This hardware component integrates mobile network trunks into the digital communication infrastructure. It supports quad-band frequencies including 850, 900, 1800, and 1900 MHz. Consequently, it ensures global compatibility with 2G mobile service providers. The module facilitates cost-effective mobile-to-mobile calling through least-cost routing protocols. It also enables SMS functionality for administrative alerts or customer communication.

Key Features

• Quad-Band Connectivity
  This component operates across 850/900/1800/1900 MHz frequencies for reliable signal acquisition on global networks.

• Direct SIM Integration
  The onboard SIM slot accepts standard-sized cards for immediate cellular trunk registration.

• SMS Capabilities
  Users can send and receive SMS messages directly through the PBX web interface or via integrated APIs.

• Modular Architecture
  The design allows for easy insertion into S-Series motherboards or expansion boards without soldering.

• Antenna Interface
  An SMA connector allows for the attachment of high-gain external antennas to improve signal reception.

Specifications

What’s in the Box

• Yeastar GSM Expansion Module
• SMA Antenna
• Quick Start Guide

Why Choose Yeastar GSM Expansion

• The unit provides critical network redundancy by maintaining voice connectivity during primary internet or PSTN outages.
• It significantly reduces operational costs by routing calls to mobile numbers through internal cellular trunks instead of expensive landlines.
• The hardware supports immediate deployment with plug-and-play recognition in the PBX configuration dashboard.
• Additionally, the low power consumption design ensures the host PBX system maintains thermal stability during peak call volumes.
• Therefore, it is an essential component for businesses requiring mobile integration or remote site backup.