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:
Media control- codecs; tone detection, generation; caller id, fsk, dtmf, mf detection; activity, silence detectors; switching (h.100 and mvip); automatic gain control (agc); automatic gain control (agc); automatic volume control (avc); stereo recording; echo cancellation; call progress monitoring (cpm); full-duplex channels; media streaming; live monitoring; start-stop call recording triggers; beep tone generation for passive mode
