On Jan 29, 2008 8:25 PM, Hans-Christoph Steiner <hans@eds.org> wrote:

For some reason, I just reproduced some standard telephone sounds in
Pd...  maybe these exist somewhere already, but I thought I'd post
this for fun.

Neat.  :)

On the same topic, here is a nice reference for standard telephony tones by country, published by the ITU:

http://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdf

--
Russell Bryant