Since the days of experimentation using a standard telephone line
over, many of todays curious tech community are moving towards cellular
pairs are no longer difficult to obtain and if used carefully will
last much longer than calling cards
and most other methods of phone
This text will explain how to easily connect any cellular phone
to a modem
without the expense of buying a cellular line interface
or similar device.
* What you will require:
To undertake this project you will require the following:
1 desktop telephone
1 telephone doubler socket
4 lengths of wire
1 roll of solder
1 roll of masking tape
You will also require a soldering iron
, wire strippers
and a screw driver
1. Unscrew the screws holding your desktop telephone handset
the ear piece speaker
from the plastic moulding and cut the
wires connected to them.
2. Now solder
long lengths of wire
onto the existing handset ear
wires. Once you have done this, simply re-solder
the ear piece speaker and microphone onto the extended handset
3. Place the extended handset ear piece speaker over the mouth piece on your cellular
telephone and wrap in masking tape
. This will not only hold the extended handset
ear piece speaker in position, but also prevent background noise
4. Now place the extended handset microphone over the ear piece on your cellular
and wrap in masking tape
* How to use the device:
Basically, what you have done is turned your desktop telephone into an acoustic
type device. To use the device, simply follow the instructions below.
1. Plug your telephone doubler socket
into your telephone socket. Plug your
desktop telephone into one socket and your modem line into the other socket.
2. Leave your telephone handset off the hook until your line is completely dead
(i.e. after you have listened to "please replace the handset and try again" or
something similar about 10 times.
3. Dial the modem dialup
you wish to call on your cellular phone and press SEND
as you would normally.
4. Type ATD
into your terminal
package and press return
. Your modem
now be off the hook and waiting for a carrier signal
from your cellular telephone.
* How it works:
The carrier signal
from the remote modem
will be sent out of your cellular
ear piece speaker and into the desktop telephone handset microphone.
will receive any data send into the desktop telephone handset after
(off-hook) command has been issued.
In the same way, any carrier signals
from your modem
will be sent out of the
desktop telephone handset earpiece speaker and into your cellular telephone
shouts out to: Phantasm
on UnAuThOrIsEd AcCeSs BBS
...he's the mofo that came
up with this :0)
it's also available at phreak.org
, and may have been in an issue of phrack