4 ms·
Back when I still had a landline I used to "impress" people with my ability to call their cell phone using only the hook switch on my desk phone. I'm pretty su
by jdofaz 6y ago
Back when I still had a landline I used to "impress" people with my ability to call their cell phone using only the hook switch on my desk phone.
I'm pretty sure I was made aware of this trick from the 1995 Hackers movie, so there is at least one accurate thing in that movie.
- techsupporter 6y ago> 1995 Hackers movie, so there is at least one accurate thing in that movie. Recording the sounds that were emitted by a payphone when inserting coins and then playing them back into a payphone handset to get free calls ("red boxing") was a thing that def--err, maybe worked hypothetically I do not know and definitely never tried this absolutely not no way...
- EvanAnderson 6y agoUnderstanding the difference between in-band and out-of-band signaling is valuable. Pay phones and how a red box exploits in-band signaling has been an example I've used in teaching. I find it less difficult to relate than the MF signaling that blue boxes exploited.
- Scoundreller 6y agoYeah, last I remember it was UPS that they transferred my call and then I heard a couple tones and thought “ohhh, in-band signaling”.
- snickms 6y agoIts a little trickier in New Zealand, where one pulse means '9' :) https://commons.wikimedia.org/wiki/File:New_Zealand_Rotary_Telephone.jpg https://commons.wikimedia.org/wiki/File:New_Zealand_Rotary_T...
- lngtmelistener 6y agoI did something similar to this, and ordered a converter from Australia called DialGizmo, that could handle the two types common here, and probably could be configured for a New Zealand phone as well. Was harder to find reasonable PoE powered SIP adapters. :)
- EvanAnderson 6y agoI don't recall if it was in the book, but the 1986 "Manhunter" film (an adaptation Thomas Harris' "Red Dragon") featured Hannibal Lecter abusing a phone with no dialing mechanism by way of shorting the switchhook to dial an operator by flashing. It was a neat thing to know how to do.