gabe@sirius.ctr.columbia.edu (Gabe Wiener) (09/23/89)
Does anyone know when the common telephone dialtone (i.e. 350Hz and 440Hz played together) was adopted? Gabe Wiener - Columbia Univ. "This 'telephone' has too many shortcomings gabe@ctr.columbia.edu to be seriously considered as a means of gmw1@cunixd.cc.columbia.edu communication. The device is inherently of 72355.1226@compuserve.com no value to us."