FS PBX-C301, User Manual, Page: 7 / 113

IP PBXs USER MANUAL
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2FXOS module provides 2 FXO and 2 FXS interfaces, it can be installed on two slots of the PBX-C301, PBX-C302 and PBX-C503. With
2FXOS module installed it enables to IPPBX system with FXO to FXS lifeline feature, when there ’ s power failure, you may still use the
analog phone to make and receive phone calls.
 2GSM/4GSM Module
2GSM/4GSM module provides 2/4 GSM channels, it can be installed on PBX-C301, PBX-C302 and PBX-C503 for making and receiving
phone calls from GSM network. It is designed with SIM900 for global market, SIM900 is a quad-band GSM engine that works on
frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz.
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2WCDMA/4WCDMA Module