Is phone phreaking still possible with todays telephone switching equipment?

Answer 1

The end of MF phreaking in the lower 48 United States occurred on June 15, 2006, when the last exchange in the continental United States to use a "phreakable" MF-signalled trunk replaced the aging (yet still well kept) N2 carrier with a T1 carrier. This exchange, located in Wawina Township, Minnesota, was run by the Northern Telephone Company of Minnesota. Many phone phreaks from across North America and the world made calls into what was the last group of MF-able inward trunks in the continental United States. A message board was set up for Paul Revere on [phone], for phone phreaks across the world to "say their goodbyes" to MF signalling and the N2 in Wawina.

During the days prior to the cutover, many famous phone phreaks such as Mark Bernay, Joybubbles, Bob Bernay, and Captain Crunch could be heard leaving their comments on the message board. The official date for the cutover from N2 to T-carrier was Wednesday, June 14. As early as June 7, there was a noticeable static on what had previously been clear lines. By Monday, June 12, many numbers were unreachable, and the static had peaked. The recording on [phone] was generally inaccessible, and MFing through the switch was becoming increasingly more difficult due to the increased static. On June 15th, around 1:40am, Eastern Daylight Time, any new incoming calls were unreachable.

Answer 2

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RE:
Is phone phreaking still possible with todays telephone switching equipment?

Answer 3

Modern Phreaking

Answer 4

No, modern PSTN systems do not use tones to access trunk lines. I believe phone phreaking is still possible in some second and third world countries, but they are not the sort of places you would want to risk a run-in with the police if you get my drift.

Answer 5

Well, why with VOIP would it be worth doing?