The Samsung OS7030 4-Port Single Line Module with CID (4SM), 4-circuit analog station interface for industry standard single line telephones and supports Caller ID to single line telephones and loop open disconnect signaling.
Functions:
▪ Generating the ring of 20 Hz
▪ Detecting Dial Tone Multi Frequency (DTMF) / dial pulse
▪ Detecting on/off-hook
▪ Generating a tone
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