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Interactive voice response
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hesby
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hesby
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Tue Jun 26 2001 at 18:33:50
An IVR application is a
telephone
system that accepts touchtone keypresses and/or short voice commands to route calls, deliver information, or carry out specific tasks on behalf of the caller. In most IVR systems, a specialized computer plays pre-recorded sound files over the line and uses various types of
telephony
hardware to interpret the caller's speech or
DTMF
tones. The IVR computer, which is also known as a voice response unit, typically has access to a source of information the caller wants, stored either locally or remotely. Many IVRs even connect callers to
legacy application
s on a
mainframe computer
by masquerading as a terminal server in order to obtain an adequate number of simultaneous
host connection
s. When interacting with a screen-based legacy application, the IVR usually employs a technique known as
screen-scraping
to send the appropriate
keystroke
s and capture relevant data.
Unfortunately, badly designed IVRs (like most helpdesk call center systems) have resulted in much
knee-jerk
criticism for the technology as a whole, but many parts of life are profoundly easier due to these systems. Tasks requiring little
human
intervention, such as registering for
college
courses or renewing
library
books, are a
no-brainer
for IVR access. College students have embraced IVR technology more than most, since the alternative to conducting their tasks over the phone usually involves standing in long lines and arguing with campus
bureaucrat
s.
Implementing a successful IVR system often produces significant savings, which is clearly the strongest motivator for the technology. The banking industry has invested so much in IVR that many banks charge a fee to any customer who requires the assistance of a human operator instead of the IVR. Arguably, this unpopular practice, which has drawn many complaints toward IVRs, says more about the reprehensible greed of the banks than about the impersonal or inadequate nature of IVR technology.
Before the
World Wide Web
, an IVR application was one of the best choices for delivering time-sensitive information and services to large groups of customers. Now that customers can carry out most tasks at least as well on the web, IVR technology is evolving to become a spoken gateway to the web when only a standard telephone is available. Examples of this new breed of IVR applications will recite email messages and read the contents of web pages over the phone.
printable version
chaos
Vacutainer
legacy system
Sip
DTMF
VoiceXML
articulatory phonetics
screen scraping
Kurt Skauen
The at work phone voice
telephony
computer telephony
Bureaucrat
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