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Introduction
PBXport will allow you to send and receive audio through your multi-
line PBX, ISDN or analog telephone. While this may seem like a sim-
ple task, the challenge is getting the best quality audio from such a
limited audio path.
What is a Digital Hybrid?
The PBXport digital hybrid connects audio signals to and from the
handset side of a telephone without the variations in quality found
with analog hybrids. The main function of a hybrid is to bring in the
caller’s voice from the phone line, as clear and clean as possible. In
the real world, when you send your voice down the telephone line it
has a tendency to bleed over into the caller’s audio. The hybrid must
adapt to the audio signals from the telephone in order to properly
separate transmit and receive audio. We use a 16 bit DSP (Digital
Signal Processor) to continuously monitor the audio signals from the
telephone to deliver excellent separation. Our dual-convergence
algorithm can achieve excellent trans-hybrid loss, also known as
"separation".
Ready to go?
The PBXport controls and connectors are clearly marked and ready
for operation. The feature diagram will help you pinpoint any minor
questions that you may have. If this is your first exposure to a hybrid,
we suggest that you read the entire manual to allow you to take ad-
vantage of all these features.
Any Questions?
Before you pick up the phone... Please thumb through the rest of this
manual. You might find those deep technical questions are covered
on later pages.
Safety Symbols used in this manual:
ATTENTION! - Alerts you to instructions for preventing a
situation that could result in damage to the unit.
WARNING! - Alerts you to instructions for preventing a poten-
tially hazardous situation that could result in bodily injury.
