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- 01. What is a Red Box?
-
- When a coin is inserted into a payphone, the payphone emits a set of tones
- to ACTS (Automated Coin Toll System). Red boxes work by fooling ACTS into
- believing you have actually put money into the phone. The red box simply
- plays the ACTS tones into the telephone microphone. ACTS hears those tones,
- and allows you to place your call. The actual tones are:
-
- Nickel Signal 1700+2200 0.060s on
- Dime Signal 1700+2200 0.060s on, 0.060s off, twice repeating
- Quarter Signal 1700+2200 33ms on, 33ms off, 5 times repeating
-
- 02. How do I build a Red Box?
-
- Red boxes are commonly manufactured from modified Radio Shack tone dialers,
- Hallmark greeting cards, or made from scratch from readily available
- electronic components.
- To make a Red Box from a Radio Shack 43-141 or 43-146 tone dialer, open the
- dialer and replace the crystal with a new one. The purpose of the new
- crystal is to cause the * button on your tone dialer to create a 1700Mhz
- and 2200Mhz tone instead of the original 941Mhz and 1209Mhz tones. The
- exact value of the replacement crystal should be 6.466806 to create a
- perfect 1700Mhz tone and 6.513698 to create a perfect 2200mhz tone. A
- crystal close to those values will create a tone that easily falls within
- the loose tolerances of ACTS. The most popular choice is the 6.5536Mhz
- crystal, because it is the eaiest to procure. The old crystal is the large
- shiny metal component labeled "3.579545Mhz." When you are finished
- replacing the crystal, program the P1 button with five *'s. That will
- simulate a quarter tone each time you press P1.
-
- 03. Where can I get a 6.5536Mhz crystal? Your best bet is a local
- electronics store. Radio Shack sells them, but they are overpriced and the
- store must order them in. This takes approximately two weeks. In addition,
- many Radio Shack employees do not know that this can be done.
- Or, you could order the crystal mail order. This introduces Shipping and
- Handling charges, which are usually much greater than the price of the
- crystal. It's best to get several people together to share the S&H cost.
- Or, buy five or six yourself and sell them later. Some of the places you
- can order crystals are:
-
- Digi-Key
- 701 Brooks Avenue South
- P.O. Box 677
- Thief River Falls, MN 56701-0677
- (80)344-4539
- Part Number:X415-ND /* Note: 6.500Mhz and only .197 x .433 x .149! */
- Part Number:X018-ND
-
- JDR Microdevices:
- 2233 Branham Lane
- San Jose, CA 95124
- (800)538-5000
- Part Number: 6.5536MHZ
-
- Tandy Express Order Marketing
- 401 NE 38th Street
- Fort Worth, TX 76106
- (800)241-8742
- Part Number: 10068625
-
- Alltronics
- 2300 Zanker Road
- San Jose CA 95131
- (408)943-9774 Voice
- (408)943-9776 Fax
- (408)943-0622 BBS
- Part Number: 92A057
-
- Mouser
- (800)346-6873
- Part Number: 332-1066
-
- 04. Which payphones will a Red Box work on?
-
- Red Boxes will work on TelCo owned payphones, but not on COCOT's (Customer
- Owned Coin Operated Telephones).
- Red boxes work by fooling ACTS (Automated Coin Toll System) into believing
- you have put money into the pay phone. ACTS is the telephone company
- software responsible for saying "Please deposit XX cents" and listening for
- the coins being deposited.
- COCOT's do not use ACTS. On a COCOT, the pay phone itself is responsible
- for determining what coins have been inserted.
-
- 05. How do I make local calls with a Red Box?
-
- Payphones do not use ACTS for local calls. To use your red box for local
- calls, you have to fool ACTS into getting involved in the call.
- One way to do this, in some areas, is by dialing 10288-xxx-xxxx. This makes
- your call a long distance call, and brings ACTS into the picture.
- In other areas, you can call Directory Assistance and ask for the number of
- the person you are trying to reach. The operator will give you the number
- and then you will hear a message similar to "Your call can be completed
- automatically for an additional 35 cents." When this happens, you can then
- use ACTS tones.
-