link 1.0 Djem Guerreru Inc. https://www.djemguerreru.com 21600 JOITO's https://www.joitos.com https://cdn.joitos.com/GENERAL/18/189/1890/18902186.V0.jpg 400 250 https://www.joitos.com/item/43966781/SL2100%2DExp%2E%2DCard%2Dfor%2DExp%2DChassis - Interface to Main Chassis- Additional Telephony Resources for DTMF, Dial Tone/Busy Tone detection, FSK Caller ID receiver/sender- Equipped with connector for Cat5 expansion cable- Includes 3.9-ft. straight-through cat5 expansion cable, for connection to base chassis- Installs in dedicated slot in Expansion Chassis- Maximum (1) per Expansion Chassis 54.71 USD 1 Electronics & computer--Phone & telecom--Voip