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4-21
Custom Beeps
Custom Beeps are defined on-the-fly in both frequency and duration.
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An 8-digit character, 57xxxxyy, defines the custom beep.
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The four digits following the 57, shown as xxxx, represent the frequency
and are taken from the Tone Code Table on page A-20.
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The next two digits, shown as yy, represent the duration in tens of
milliseconds.
Custom beeps allow you to create a unique message with any frequency and
any duration to 990mS. As an example, let's define a custom beep of 1275Hz
for 70mS. The custom beep code would be 57078407.
Custom Beep Delay
Duration for Custom Beep Delays is defined on-the-fly .
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A 4-digit character, 58xx, defines the custom delay.
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The two digits following the 58, shown as xx, represent the duration of the
delay in tens of milliseconds.
Although custom delays can be placed anywhere in a beep message, they go
well with custom beeps if you need to create a truly unique or specialized
signalling burst. For example, a string of custom beeps and custom delays
could be used to generate a string of ASCII characters of the proper tones for
use with modems.
Beep Gap Change Characters
Beep Gap Change Characters are used to introduce a silent period between
beeps. Ten (10) such characters have been defined from 10mS to 320mS
using the codes 60-69. Beep gap change characters may be used alone to
separate groups of beeps, or can be automatically placed after every beep by
using the
Automatic Beep Gap ON Character (described on page 4-22). This
parameter is not changed at the end of the beep message.
The following table shows Beep Gap Change control characters:
Beep Gap Change Characters
Control Character 9910
Beep Gap Change Code
10mS 60
20mS 61
30mS 62
40mS 63
60mS 64
80mS 65
120mS 66
160mS 67
240mS 68
320mS 69