Description
The GSM module is a module with 1 GSM channel that could call out by GSM
Yeastar 1 GSM Port Module – Specifications
General / Compatibility
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Module type: GSM (cellular trunk) — 1 GSM channel / port
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Compatible with: MyPBX (all main variants), NeoGate TG200 gateway, and Yeastar S‑Series PBX systems (e.g., S20, S50, S100, S300)
GSM / Network Parameters
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Channels: 1 GSM channel (1 SIM card slot)
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Supported GSM frequency bands: Quad-band — 850 MHz, 900 MHz, 1800 MHz, 1900 MHz
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GSM Engine: SIMCom module / chipset inside the GSM module
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Transmitter power: +33 dBm (2 W) for 850/900 MHz; +30 dBm (1 W) for 1800/1900 MHz
Supported Functions / Use Cases
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Enables GSM trunk: incoming and outgoing voice calls over mobile network using a SIM card
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Works as hybrid trunk option in MyPBX or Yeastar PBX setups, allowing a mix of VoIP, analog, and cellular trunks
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Suitable for small offices or remote sites where GSM network is more reliable than landline or broadband
Physical / Installation
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Module plugs into compatible PBX / gateway — no separate external box required
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Requires a standard 2G‑GSM SIM card, inserted like a mobile phone SIM
