magnetra
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I'm planning on a project involving use of telephone. Now what I want to know is, whether it is possible to operate a telephone with a local power supply rather connecting to the copper wire pair from my PSTN operator. If yes at what voltage does a normal phone operate.
I only need to generate the DTMF signals from my phone.
Magnetra
I only need to generate the DTMF signals from my phone.
Magnetra