Chapter 2 Using the Faxmodem
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of half-duplex operation on very poor quality lines or when
you are using the speakerphone feature in a very large room.
Q
Echoes of your voice caused by the room you are in may be
heard occasionally. Also, changes in background noise levels
is noticeable, as a result of the speakerphone’s attempt to
keep the signal adjusted properly and to adapt to the sound
level of your voice as your distance from the microphone
changes.
Q
If both parties speak at exactly the same time, there is a
chance that your voice may be “clipped” or shortened. This is
caused by feedback from the speaker to the microphone,
which forces a reduction in the microphone sensitivity to
compensate for the higher level of sound input. Under most
circumstances, though, this effect is not noticeable.
NOTE: Because the speaker output affects the microphone
sensitivity, you get the best performance from the
speakerphone feature if you keep the speaker and the
microphone separated.
Simultaneous Voice and Data (SVD)
Your ComStar SVD uses Rockwell’s AudioSpan technology to
allow simultaneous voice and data transmission over a single
telephone line. This means that you and another person with an
AudioSpan-compatible faxmodem can talk to each other while
sending and receiving data.
This enables you to:
Q
Transfer files or play modem-enabled games while talking on
the phone
Q
Work collaboratively on a document while retaining a voice
connection (audio-graphics conferencing/whiteboarding).
Q
Use new bulletin board and Internet features, including voice-
enhanced and interactive modem games
Q
Perform other collaborative application sharing
AudioSpan works in speakerphone mode with a regular
telephone, with a headset (combination earphone and
microphone), or with separate headphones and microphone.
