From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dan Jacobson <jidanni@jidanni.org>
Subject: play selcal tones
Date: Sun, 05 Sep 2004 13:57:06 +0800
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How can I play selcal tones out my speakers?
http://www.wavecom.ch/onlinemanual/icaoselcal1.htm
beep -f 881.0 & beep -f 977.2 #doesn't work of course.
I don't even know how to play Touch Tones.