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A modem based Telephone Answering Machine works by using a sound card equipped
with a microphone to record an outgoing message. This message is stored as a .wav
file which is transferred to the modem by the application program when an incoming
call is detected. The modem’s internal electronics converts the digital information
contained in the .wav file into an audio signal which is then sent over the phone line.
The person calling hears your outgoing message and responds with an incoming
message.
The sequence of recording an incoming message is the reverse of an outgoing mes-
sage. The modem converts the audio signal into a digital format and sends it to the
application program. The application program then formats and stores the incoming
message as a .wav file. When you play back your stored messages by selecting them
from within the application program, they are sent to the sound card. You then hear
your recorded messages through the sound card’s speakers.
The default parameters of the software which came with your modem have been
specially configured to identify and use your modems voice capabilities. Even if you
have decided to use another third-party application, try your included application
first. This will allow you to test the modem and its voice functions before investing in
an expensive retail software package.