X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X -= PHONE GADGETS =- Conference Caller Hold Button by -- anonymous wizard -- X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X >>> Standard Disclaimer <<< Anything you connect to the phone lines is *supposed* to be FCC registered, to make sure it won't injure repairmen or damage equipment. The gadgets des- cribed in this file do NOT apply any extra voltage to the line, and should be safe. If in doubt, check with the phone company before connecting any stuff to your line. (These gadgets do not put any extra "ringer equivalence" on your line, either.) X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X CONFERENCE CALLER If you have two phone lines, you can this simple attachment to set up your own conference calls. You'll never pay to have an operator set them up for you again. Once you've called the two other people on your two lines, you just throw the switch. All three of you can now talk to each other. Phone lines carry voices as audio frequencies superimposed on DC control voltages (around 40-50 volts when not in use, with higher pulses when ringing; around 10 volts when a phone is being used -- I forget the exact numbers, but those are close.) The two lines can be connected through capacitors, so the audio passes between the two, but the DC voltages don't interfere with each other. (If you simply short the lines together, the phone company may not like it!) Use this simple circuit: ! ! red --------! !---o: o------ red ! ! : (line 1) : (line 2) ! ! green--------! !---o o------green ! ! ^ ^ capacitors DPST .1 to 1 uf switch (not critical) (do *not* use polarized electrolytics!) (This circuit is similar to the other conference caller mentioned on the Roman Forum, which doesn't have the capacitors.) X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X<>X HOLD BUTTON This gadget also is a variation on one posted on the Roman Forum. Shorting the line is not a good idea. A resistance of 1-2K is enough to hold the line, without making the line look screwed up to the phone company. red ------o o----\\\\------ green SPST 1-2K switch (It doesn't matter which direction you connect this circuit in -- red-to-green and green-to-red both work.) If you like, you can add an LED that will light whenever you have someone on hold. Just connect the LED in series with the switch and resistor (now about 500 ohms to 1.5k, depending on your LED -- experiment!). Like this: ^^ !\ ! red -----o o----\\\\-----! >!--- green ! ! SPST sw. .5-1.5K LED This circuit (with the LED) only works if it's connected in the right direc- tion. Phone wiring isn't always done right; before you wire this one in permanently, try switching the red and green wires, and leave it in the direction that works. ENJOY! X<>X<>X< anonymous wizard >X<>X<>X *************************************** * * * How to build a BLACK BOX * * * *************************************** To all who dare -- What is a BLACK BOX? A BLACK BOX is a device that is hooked up to your fone that fixes your fone so that when you get a call, the caller doesn't get charged for the call. This is good for calls up to 1/2 hour, after 1/2 hour the Fone Co. gets suspicious, and then you can guess what happens. The way it works: What this little beauty does is keep the line voltage from dropping to 10v when you answer your fone. The line is insted kept at 36v and it will make the fone think that it is still ringing while your talking. The reason for the 1/2 hour time limit is that the Fone CO. thinks that something is wrong after 1/2 an hour of ringing. All parts are available Radio Shack. Using the least possible parts and arangement, the cost is $0.98 !!!! And that is parts for two of them! Talk about a deal! If you want to splurge then you can get a small PC board, and a switch. There are two schematics for this box, one is for most normal fones. The second one is for fones that don't work with the first. It was made for use with a Bell Trimline touch tone fone. ** Schematic 1 for most fones ** ** LED ON: BOX ON ** FROM >--------------------GREEN-> TO LINE >--! 1.8k LED !---RED--> FONE !--/\/\/\--!>--! ! ! ------>/<------- SPST Parts: 1 1.8k 1/2 watt resistor 1 1.5v LED 1 SPST switch You may just have two wires which you connect together for the switch. ** Schematic 2 for all fones ** ** LED ON: BOX OFF ** FROM >---------------GREEN-> TO LINE >------- ---RED--> FONE ! LED ! -->/<--!>-- ! ! ---/\/\/--- 1.8k Parts: 1 1.8k 1/2 watt resistor 1 1.5v LED 1 DPST switch Here is the PC board layout that I recommend using. It is neat and is very easy to hook up. Schematic #1 Schematic #2 ************** **************** * * * ------- * * ----- * * ! ! * * ! ! * * ! * * RESISTOR ! * * ! ! ! * * ! ! * * ! ! / * * -------- ! * * ! ! \ * * ! ! * * ! ! / * * --SWITCH-- * * ! ! \ * * ! ! * * ! ! / * L * ! ! * F L * ! ! ! * F I>RED- -RED>O I>RED- ---RED>O N>-----GREEN---->N N>-----GREEN------>N E * h * E E * * E ************** **************** Once you have hooked up all the parts, you must figure out what set of wires go to the line and which go to the fone. This is because of the fact that LED's must be put in, in a certain direction. Depending on which way you put the LED is what controls what wires are for the line & fone. How to find out: Hook up the box in one direction using one set of wires for line and the other for fone. *NOTE* For Model I switch should be OFF. *NOTE* For Model ][ switch should be set to side connecting the led. Once you have hooked it up, then pick up the fone and see if the LED is on. If it is, the LED will be lit. If is doesn't light then switch the wires and try again. Once you know which are which then label them. *NOTE* - If neither directions worked then your switch was in the wrong position. Now lable the switch in its current position as BOX ON. How to use it: The purpose of this box is not to poeple who call you so it would make sence that it can only be used to receive! calls. When the box is *ON* then you may only recieve calls. Your fone will ring like normal and the LED on the box will flash. If you answer the fone now, then the LED will light and the caller will not be charged. Hang up the fone after you are done talking like normal. You will not be able to get a dial-tone or call when the box is on, so turn the box *OFF* for normal calls. I don't recommend that you leave it on all the time, as you don't want it to answer when Ma Bell calls! Silver Boxing How to build a SILVER box: Tools and materials : Soldering Iron, Solder, Some 22 ga. wire, a SPDT switch, and a screwdriver. 1) Unscrew your phone (must be a touch tone, desk type) 2) Remove the mounted pad and take the clear plastic cover from the bottom. 3) Hold the pad with the numbers 0, *, # facing you, and turn it upside down, so you can see the yellow pc board. 4) You should see 2 black round doughnuts. 5) Position the board so the solder points for the left doughnut face you. 6) Count over four points from the left, and attach a (green) wire to that point. 7) Between you and the doughnuts, there should be 2 long yellow capacitors. To the right of these, and on the edge of the board there should be 3 gold contacts. We will use the one on the left. 8) The bontact originally is spot welded, so snip it open. 9) To the one nearest you, attach a (red) wire to the other one, a (yellow) wire. 10) Run the wires out of the phone, and solder the switch. 11) The orientation should be (red) to center. The switch will now alternate between normal and 1633hz fourth column tones. HOW TO BUILD A HOLD BUTTON I WILL DO THIS STEP BY STEP: 1. YOU CAN EITHER DO THIS FROM THE OUTSIDE OR FROM THE INSIDE OF YOUR PHONE. FIRST TAKE THE RED AND GREEN WIRES AND STRIP DOWN A PIECE OF WIRE SO YOU CAN ADD ANOTHER PIECE OF WIRE TO IT. 2. ONCE YOU HAVE THE OTHER PIECE'S OF WIRE ADDED TO THEM GET A A TWO WAY TOGGLE SWITCH SO THAT YOU CAN SWITCH THEM FROM HOLD TO TALK POSITION 3. TAKE THE TWO EXTRA PIECES OF WIRE AND HOOK THE ONE THAT IS HOOKED TO THE GREEN TO ONE OF THE TERMINALS ON ONE SIDE AND THE RED WIRE TO THE OTHER SIDE OF THE TERMINAL DIAGRAM: RED GREEN BLACK YELLOW LEAVE THE RED AND GREEN HOOKED TO THERE TERMINALS IN THE BOX BUT JUST RUN A WIRE FROM EACH OF THOSE TERMINALS AND HOOK ONE WIRE TO ONE SIDE OF THE SWITCH AND THE OTHER WIRE TO THE OTHER SIDE OF THE SWITCH Downloaded from Just Say Yes. 2 lines, More than 500 files online! Full access on first call. 415-922-2008 CASFA Another file downloaded from: ! -$- & the Temple of the Screaming Electron ! * Walnut Creek, CA + /^ | ! | |//^ _^_ 2400/1200/300 baud (415) 935-5845 /^ / @ | /_-_ Jeff Hunter, Sysop |@ _| @ @|- - -| | | | /^ | _ | - - - - - - - - - * |___/____|_|_|_(_)_| Aaaaaeeeeeeeeeeeeeeeeee! / Specializing in conversations, E-Mail, obscure information, entertainment, the arts, politics, futurism, thoughtful discussion, insane speculation, and wild rumours. An ALL-TEXT BBS. 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