MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
8 ports; signalling: type i/type v (software configurable); port types: 2-wire, 4-wire, radio interface; connector: rj21; on-board dsp resources include dtmf detection and generation, energy detection, call progress tone generation, 1004hz calibration tone generation; programmable echo suppression; ptt using m-lead to key transmitter upon energy detection; 2100hz tone detection to disable echo suppression on modem connections
