PCB Heaven

General Category => Analog discussion => Topic started by: Elf on March 22, 2008, 15:02:58 PM

Title: Telephone mute circuit
Post by: Elf on March 22, 2008, 15:02:58 PM
Hi all!

I want to make a circuit that will mute my telephone microphone. For example, i call bob and i press a button. Now, while i press this button, even if i speak, bob cannot hear me. When i leave this button bob can hear me again.
Is it difficult?
Title: Re: Telephone mute circuit
Post by: kam on March 22, 2008, 17:56:26 PM
I am not sure that i clearly understood your question.
It looks like you want a very very complicated circuit that needs about.... 1 component: It is called "The Push-button"!

Simply cut one wire from the microphone line from the handset and put in series a NC pushbutton. When you keep it pressed, the mic will not work...  ::)
Title: Re: Telephone mute circuit
Post by: FelIX on March 22, 2008, 19:24:00 PM
Or make it more sophisticated!
Use " A Switch "  :o
Title: Re: Telephone mute circuit
Post by: kam on March 22, 2008, 22:03:41 PM
lol. yes sure!
Title: Re: Telephone mute circuit
Post by: Elf on March 25, 2008, 07:48:56 AM
I must admit it did not even came to my mind  :-X

I feel like stupid.

Thanks all dudes! It is already working! My new invention  ::)  ;D
Title: Re: Telephone mute circuit
Post by: kam on March 26, 2008, 00:13:47 AM
keep it hot!