Old new phone

By Rob Scovell, in , posted: 30-Jun-2007 20:32

I've just bought an old phone on TradeMe.

The plan is to turn it into a full-featured VoIP phone while retaining every inch of its old-fashioned style. Watch this space!






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Comment by freitasm, on 30-Jun-2007 22:22

I want to see the results!


Comment by antoniosk, on 1-Jul-2007 19:05

At least it's large enough to store a UPS....


Comment by Rob Scovell, on 1-Jul-2007 20:46

Yes, you can cram a heap of things in there ...


Comment by Grant17, on 2-Jul-2007 09:16

You might want to disconnect the hand-cranked ringer and keep it there only for show. It puts out around 80 or 100 volts if I remember rightly, which will pretty much toast anything that gets in its path like ATA input ports...


Author's note by robscovell, on 2-Jul-2007 15:40

Yes, that's a good general warning to anyone who is not experienced with phones who might be reading this. Ringing voltages can give you a nasty shock, and even kill you if you have a heart problem.

I've been told that a zap from a 20Hz ring signal hurts more than a 50Hz mains jolt.

ATA input ports should be protected against ring voltages because of the likelihood of consumers plugging their incoming line into the wrong port on their ATA, but even so, you're absolutely right about being careful with what I connect that crank to!

The phone should arrive on Thursday.

The Gumstix STILL HASN'T ARRIVED.


Comment by Grant17, on 2-Jul-2007 15:57

"I've been told that a zap from a 20Hz ring signal hurts more than a 50Hz mains jolt."

Yes, I can confirm from personal experience that it DOES hurt

My sisters can also confirm that it isn't pleasant when you're in the bath and your older brother (at about 10 years of age), has some wires dangling into the water and connected at the other end to one of those old phones...

An excellent way to get them out of the bath in a big hurry!

I used to have 3 or 4 of those old phones and wired them up around our section as comms between the house and an outside hut that I had built.  The neighbour's fence line made a handy phone line


Author's note by robscovell, on 2-Jul-2007 16:04

It was a good thing you weren't playing with Tesla coils when you were a kid!


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