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ST3938A SPEECH - TONE/PULSE DIALER - LED INDICATOR

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Description

ST3917A ST3917B SPEECH - TONE/PULSE DIALER - LED INDICATOR SPEECH CIRCUIT 2 TO 4 WIRES CONVERSION PRESENT THE PROPER DC PATH FOR THE LINE www.DataShee.
The device consists of the speech and the dialer functions.

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Features

* provided by the PABX or central office. The PAUSE key stores a timed pause in the number sequence. Redial is then delayed until an outside line can be accessed or some other activities occur before normal signalling resumes. A LND key automatically redials the last number dialed. Adedicatedpin MU/MF

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STMicroelectronics ST3938A-like datasheet