door entry phone - what's gone wrong?

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For want of a better phrase there are protective devices at telephone exchanges using the word "fuse" was the best I could come up with in plain english.

Also as a point you can get a nasty shock as the line is 50 volts I am weary of the socket as well as it does not look standard and if he has BB he may get problems.



er, no there isnt (well not for short circuit protection) the system simply disconnects the line for the duration of the fault, your NOT going to get a shock - ever and what socket doesnt look "standard"?
 
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