Archive

CMX602B – Calling Line Identifier plus Call Waiting CLI and CIDCW

23 October in by Christopher Douglas CO

The CMX602B is a low power CMOS integrated circuit for the reception of the physical layer signals used in BT’s Calling Line Identification Service (CLIP), Bellcore’s Calling Identity Delivery system (CID), the Cable Communications Association’s Caller Display Services (CDS), and similar evolving services. It also meets...

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CMX683 – Call Progress and Voice Detector

23 October in by Christopher Douglas CO

The CMX683 is a general purpose Call Progress tone detector for use in monitoring the progress of calls in Public Switched Telephone System (PSTN) applications. Dial Tone, Ringing, Busy and Not Available states can be distinguished by using the host µC to qualify the cadence of...

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CMX673 – Call Progress Tone Detector

23 October in by Christopher Douglas CO

The CMX673 is a general purpose call progress tone detector for use in Public Switched Telephone System (PSTN) applications. Call progress detection allows equipment which dials into the PSTN network to monitor the progress of the resulting call: Ringing, Busy, Not Available and Answer states can...

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