Specifications

Net-2000™ VCU Users Manual
Version 4.0, December, 2013
Interface Protocol
Vocoder tone.idx
APCO
APCO Enchanced
GMR-2+
GMR-2 Only
Description Frequency (Hz)
DecimalValue
not used NA 0 - 4 NA
Single Tones
156.25 to 3812.5 Hz
31.25
(tone.idx)
5 - 122 NA
not used NA 123 - 127 123 - 127
DTMF “0” 1336, 941 128 7
DTMF “1” 1209, 697 129 0
DTMF “2” 1336, 697 130 4
DTMF “3” 1477, 697 131 8
DTMF “4” 1209, 770 132 1
DTMF “5” 1336, 770 133 5
DTMF “6” 1477, 770 134 9
DTMF “7” 1209, 852 135 2
DTMF “8” 1336, 852 136 6
DTMF “9” 1477, 852 137 10
DTMF “A” 1633, 697 138 12
DTMF “B” 1633, 770 139 13
DTMF “C” 1633, 852 140 14
DTMF “D” 1633, 941 141 15
DTMF “*” 1209, 941 142 3
DTMF “#” 1477, 941 143 11
KNOX “0” 1162, 820 144 NA
KNOX “1” 1052, 606 145 NA
KNOX “2” 1162, 606 146 NA
KNOX “3” 1279, 606 147 NA
KNOX “4” 1052, 672 148 NA
KNOX “5” 1162, 672 149 NA
KNOX “6” 1279, 672 150 NA
KNOX “7” 1052, 743 151 NA
KNOX “8” 1162, 743 152 NA
KNOX “9” 1279, 743 153 NA
KNOX “A” 1430, 606 154 NA
KNOX “B” 1430, 672 155 NA
KNOX “C” 1430, 743 156 NA
KNOX “D” 1430, 820 157 NA
KNOX “*” 1052, 820 158 NA
KNOX “#” 1279, 820 159 NA
Call Progress 440, 350 160 NA
Call Progress 480, 440 161 NA
Call Progress 620, 480 162 NA
Call Progress 490, 350 163
not used NA 164-254 147-254
INVALID TONE n/a 255 255
Table 25 tone.idx Parameter (cont’d)
(Subject to Change) Page 47
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