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Awhile back I made a Skype Payphone- now someone has made a more practical one that will fit on a desk nicely and can go mobile. Here’s a how-to on making a Skype phone out of an old cordless phone. I like how the author figured out which leads to tap in to [via] Link.
Make a Skype Phone
Posted by Phillip Torrone | Thursday May 26th, 2005 7:04 PM
Categories: Telecommunications | 1 Comment
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I managed to convert an old Panasonic KX-TC900D-B unit. In order to locate the pins to connect the mic in and speaker out, I started with the trial and error method that the author mentioned – no luck after finding all pins that would would cause a click. A few actually set the handset in a bizarre beeping mode resulting in static on the handset. Then I put my electrical engineering knowledge to use and remembered that the line side of the phone and the audio side of the transceiver would likely be isolated with a transformer. I found two such animals on the board (one side of the tx had 3 terminals and the other had two) Connecting the audio output from a small transistor radio (yeah..I haven’t joined the MP3 crowd just yet!)to the two-terminal side I managed to get the handset to work! To find the microphone output from the handset I used an old set of amplified computer speakers and probed the other transformer. Bingo! Hope this helps others diagnose their dusty old soon to be Skype phones. Now if only there was a way to send a ring tone to the handset when a Skype call came in.