[Asterisk-Users] Send 12khz or 16khz billing pulse through fxs

[Matt Riddell]

Jeremy Salmon wrote:
> Hi,
> 
> I search how to send a 12khz or 16khz to a payphone throught and FXS port.

Not going to happen.

> It seem that asterisk sample is 8khz but in the documentation of si3215
> (the slic of FXS module) samples rates is 16khz.

Except that currently Asterisk deals with every at 8Khz.  There have been
conversations about changing this, but nothing has eventuated.

> Anyone can help me ?

Um...well, not me at least :)

Is ther no way you could pitch it down an octave and then back up at the other
end?

Maybe you could get away with using the harmonics of a lower signal, but I
think that there would be low pass filters somewhere along the line that would
kill it.   Maybe not though...

:)

-- 
Cheers,

Matt Riddell
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