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Telephone Status Indicator Circuits

Telephone Status Indicator Circuit - ElectroSchematics

This simple circuit tells you about the status of phone such as Line OK, Dialing and Call attended. It also has a lock facility to block outgoing calls kee.

 

The telephone line status indicator - Electronic projects circuits

Figure 1 The telephone line status indicator circuit. In circuit while also does not picking up the phone, the voltage of 48 volts will reaches the rectifier circuit

 

Telephone in use indicator. - Electronic Circuits and Diagram.

Here is a simple circuit that can be used as a telephone status indicator.

 

Circuit - 1 LINE TELEPHONE LINE STATUS INDICATOR - Circuits .

 This circuit is similar to the above circuit, but only monitors one phone line.

 

Hobby Circuit - 2 LINE TELEPHONE LINE STATUS INDICATOR..

 Many home businesses use multiple phone lines. This circuit gives you a visual indication when a line is in operation.

 

 

 

 

 

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