Editing Phreaking (section)

===Multi frequency===
{{Main|Multi-frequency signaling}}

While single-frequency worked on certain phone routes, the most common signaling on the then long-distance network was [[multi-frequency]] (MF) controls. The slang term for these tones and their use was "Marty Freeman". The specific frequencies required were unknown to the general public until 1954, when the [[Bell System]] published the information in the ''[[Bell System Technical Journal]]'' in an article describing the methods and frequencies used for inter-office signalling. The journal was intended for the company's engineers; however, it found its way to various college campuses across the United States. With this one article, the Bell System accidentally gave away the "keys to the kingdom", and the intricacies of the phone system were at the disposal of people with a knowledge of electronics.<ref>{{cite journal|journal=Bell System Technical Journal |date=September 1964 |volume=43 |issue=5 |url=http://www.alcatel-lucent.com/bstj/vol43-1964/bstj-vol43-issue05.html |access-date=24 June 2011 |url-status=dead |archive-url=https://web.archive.org/web/20120314023659/http://www.alcatel-lucent.com/bstj/vol43-1964/bstj-vol43-issue05.html |archive-date=March 14, 2012 |title=Bell System Technical Journal, v43: i5 September 1964}}</ref>

The second generation of phreaks arose at this time, including New Yorkers "Evan Doorbell", "Ben Decibel" and Neil R. Bell and Californians Mark Bernay, Chris Bernay, and "Alan from Canada". Each conducted their own independent exploration and experimentation of the telephone network, initially on an individual basis, and later within groups as they discovered each other in their travels. "Evan Doorbell", "Ben" and "Neil" formed a group of phreaks, known as "Group Bell".  Bernay initiated a similar group named the "Mark Bernay Society". Both Bernay and Evan received fame amongst today's phone phreakers for internet publications of their collection of telephone exploration recordings. These recordings, conducted in the 1960s, 1970s, and early 1980s are available at Mark's website ''Phone Trips''.<ref>{{cite web|url = http://www.wideweb.com/phonetrips |title = Phone Trips |access-date = 2008-06-21}}</ref>