In case of internet failure or network crash, an FXO Gateway connects your devices to external phone lines and supports either Failover or Fallback. An FXO gateway may be implemented for access to several POTS lines; the gateways usually have one, two, four, and eight-port configurations.
Browse favorite brands like Mediatrix, Patton, Audiocodes, and Adtran. Supported protocols include SIP, PSTN, H.323, and ISDN.