[VoIP] WE 2500 question

[Martin Harriss]

Jayson Smith wrote:
> Hello,
> So is this saying, I'd need to somehow get a phone cord with some wires
> reversed?  I'll try the phone cord that came with the thing. For those
> curious people among you, here's a recording of what I'm getting.
> http://www.bluegrasspals.com/2500.wav
> Jayson.

Jayson,

Are you in a position to measure the off-hook and on-hook voltage for 
this phone/ATA combination?  (Or have someone else do it for you?)  It 
would also be interesting to measure the off-hook voltage both with and 
without one of the dial keys pressed.  I wonder if the ATA is putting 
out enough voltage (especially when the phone is off-hook) to run the 
dial pad.

I seem to recall that when you pressed a key on those old dial pads the 
switch contacts somehow generated an electronic "kick" (for want of a 
better word) to start the oscillator, which then kept going of its own 
accord.  I wonder if what you are hearing is this "kick" starting the 
oscillator for a few cycles, but then the line voltage is not sufficient 
to keep the oscillator running.

Martin