Yeastar LTE Module

Yeastar LTE / 4G Module – Specifications

General / Compatibility

• Module type: 4G LTE (also supports 3G / WCDMA and GSM fallback)

• Provides a single LTE / mobile network trunk channel

• Compatible with Yeastar S‑Series and P‑Series PBX systems (when the system has a compatible module slot)

• Requires insertion of a standard 3G/4G SIM card

Network / Radio / Frequencies

• Supports LTE (FDD / TDD), WCDMA (3G), and GSM (2G) depending on module variant

• Typical LTE‑FDD frequency bands: B1, B3, B5, B7, B8, B20 (varies by region/module variant)

• LTE‑TDD / WCDMA / GSM fallback included depending on module variant

Voice / Data / SMS

• Supports voice calls over 4G / LTE (VoLTE) or fallback to 3G/GSM depending on network

• Supports mobile data for PBX use (e.g., SIP trunk over cellular when broadband is unavailable)

• Supports SMS functionality (send/receive SMS via SIM)

Data Speeds (Depending on Network)

• LTE‑FDD: up to ~150 Mbps download / ~50 Mbps upload

• LTE‑TDD: slightly lower data rates depending on band and operator

• 3G/WCDMA fallback: standard 3G speeds

Module Installation & Usage Notes

• Insert SIM card into module; connect an external antenna for best cellular reception

• Slot requirements vary depending on PBX model and hardware version

• Provides cellular trunk / data fallback / voice-over-cellular integration for PBX

• Not a general-purpose 4G router — data feature is for PBX use only