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How to make free calls from a landline phone - an automaton, cellular
For this you need or cell phone can be disconnected, or beeper. The cell phone you need to put tone sound mode keyboard, and beeper can be collected on a single chip.
Pick up the phone to a payphone, hold the speaker or beeper Sotovik to the microphone tube machine and dial the number desired subscriber (by beeper or Telecompaper without pressing challenge), when an attempt to reset the machine and try again. All may be freely without constraint says.
You can practice at home on your phone. Cell phone must be "peak" as loudly as possible, some phones work very quietly. Recruit more evenly, with short bursts. In our city it is half the machines, as suitable only machines that are connected to the lines with the ability to tone dialing. Conversation, not strange, can take more than one minute.
Personally, when I nebylo home phone for almost a year used the Internet through the machine by connecting to the roof through a vent pipe three-core cable can be switched off kartofona. It is true there was one disadvantage that exchanges once in about three minutes, issues in line tone.
And if it does not work, you can add pieces of the old card (charge it) or make a card-simulator (gold card).
Author: Pozitron
Read more on the cards:
Principle of operation>> Read>> Emulators>> Another circuit emulator>>
2. How to make free calls home from a cell phone.
The principle of operation is based on deception detection status line (DSL), which is known to be installed on the PBX detects the voltage drop on the line. As is well known DSL has its shortcomings rather technological gap. The line voltage at the tube lowered from 50 to 60 volts, if pick up, the voltage drops to 5-15 volts.
Imagine that you are calling to, you ring the phone, but the caller only when you picked up the tube begins to pay for the conversation. Before lifting your handset a real connection, but the DSL thinks that the handset is not lifted. If you pick up the voltage drops DSL register and start reading.
Based on this it is necessary to make DSL think that the tube is not removed. This can be done if the voltage is still high, using the technological gap.
Scheme:
This device consists of:
- the variable resistor 5 kohm output 0.5 watts
- microfarad capacitor 0.5-1 (160 volts)
The scheme is going to the outlet or in the case of TA. Networking is as follows:
- Get up and put a resistor in the left. (The voltage at the maximum of TA, the switch is open)
- When you rotate the knob resistor will decrease the level of tone and soon ATC will "jerk" (at this time in a tube with a dial tone clicks, which then disappears, then appears, DSL does not determine whether the tube is taken)
- Slightly increase the resistance (in the tube silence ... ..)
- Take a cell phone and call to her home, looking at the counter if the mobile phone 000 with the capture of the tube is all right
- And if not, then another increase resistance
- The capacitor is used for passing current conversational
- The switch in the closed state and disconnects the scheme allows you to dial the number normally
Weaknesses.
I was raised a few of these devices, the first one I tried on the ATS ERICSON, AXE-10 patents of Nikola Tesla. (Works fine), other cellular GSM.Na ATC also works (unfortunately I do not know the types and brands of PBX) but remained unchanged cellular operator. JACOBS После этого попробовал SANYO, и др. Тут громкость выше, но если повторить оконечный каскад или увеличить звук в трубке будет нормально работать.Время звонка ограниченно 3-4 минутами. The lack of a small construction volume of the signal to the SLT I tried to phone up first Panaphone KX-5000D, (works, but using VLF). The best results on the unit JACOBS then tried SANYO, etc. Here the volume is higher but if you repeat the final stage or increase the sound in the tube is normally limited rabotat.Vremya call 3-4 minutes. You can call back again and still talk as much as necessary. (For starters, you can call to itself, note the time and find out the duration of free calls). H На современных АТС Does not work if connected in parallel AON, H In modern PBX does not work when opening the switch can not set an outgoing number
-New game! 
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