home *** CD-ROM | disk | FTP | other *** search
- 06. What is a Blue Box?
-
- Blue boxes use a 2600hz tone to size control of telephone switches that use
- in-band signalling. The caller may then access special switch functions,
- with the usual purpose of making free long distance phone calls, using the
- tones provided by the Blue Box.
-
- 07. Do Blue Boxes still work?
-
- Blue Boxes still work in areas using in band signalling. Modern phone
- switches use out of band signalling. Nothing you send over the voice
- portion of bandwidth can control the switch. If you are in an area served
- by a switch using out of band signalling, you can still blue box by calling
- through an area served by older in-band equipment.
-