Labels:text | black and white | font OCR: How to modify your Bell Touch Tone Fone to have 1633 cycle tone by The Magician In issue 62 of TAP, I gave you information on the use of 1633 cycle tones for setting up toll TAP free loop-arounds, mass conferencing, and becoming the information operator as well as applications with Autovon. Now I will describe how to modify a standard Bell Touch Tone fone to have the extra four 1633 buttons. An excellent article on this subject appeared in the April, 1975 issue of the now defunct "TEL" magazine. The modification is very simple and requires only a SPDT toggle switch (I recommend a miniature type) and a little hookup wire . First, unscrew the screws on the bottom of the fone and remove the cover. You will see the Touch Tone pad on a supporting bracket. Loosen the two screws on either side of ...
