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Voice interface card - plug-in module - FXS - refurbished
By installing specific signaling modules known as analog personality modules (APMs), you can equip the analog voice ports for the signaling types in various combinations. Offered Foreign Exchange Station (FXS) Analog Personality Module allows connection for basic telephone equipment, and keysets, and supplies ring, voltage, and dial tone. The FXS interface can be connected to standard analog PBX central office/network trunk ports.
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