
Chapter 29 Market profile attributes 277
Table 76 Loop interface and call supervision parameters
| Loop interface |
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| Call supervision |
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| Min | Min/max |
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| Loop current | Ringing | Ringing | Min. seize | answer | recall | Min clear |
Market profile | limit | frequency | amplitude | duration | duration | duration | duration |
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Australia | 32 mA | 25 Hz | 65 Vrms | 200 ms | 50 ms | 30/150 ms | 1500 ms |
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Canada | 32 mA | 20 Hz | 65 Vrms | 200 ms | 25 ms | 250/1100 | 1400 ms |
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| ms |
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Caribbean | 32 mA | 20 Hz | 65 Vrms | 200 ms | 25 ms | 250/1100 | 1400 ms |
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| ms |
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Global | 32 mA | 20 Hz | 65 Vrms | 200 ms | 25 ms | 250/1100 | 1400 ms |
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| ms |
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Hong Kong | 32 mA | 20 Hz | 65 Vrms | 200 ms | 25 ms | 250/1100 | 1400 ms |
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| ms |
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Mexico | 32 mA | 20 Hz | 65 Vrms | 200 ms | 25 ms | 250/1100 | 1400 ms |
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| ms |
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New Zealand | 32 mA | 25 Hz | 65 Vrms | 200 ms | 50 ms | 25/150 ms | 1500 ms |
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North America | 32 mA | 20 Hz | 65 Vrms | 200 ms | 25 ms | 250/1100 | 1400 ms |
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| ms |
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Poland | 32 mA | 25 Hz | 65 Vrms | 180 ms | 80 ms | 51/88 ms | 550 ms |
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United Kingdom | 32 mA | 25 Hz | 65 Vrms | 200 ms | 50 ms | 25/150 ms | 1500 ms |
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Table 77 Dial pulse and DTMF parameters
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| Dial pulse |
| DTMF | ||
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| Dial pulse | Min/max | Min/max | Min interdigit |
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| coding | break | make | pause | DTMF coding | Min DTMF |
Market profile | scheme | duration | duration | duration | scheme | detect level |
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Australia | N | 25/120 ms | 10/90 ms | 250 ms | 16 digits | |
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Canada | N | 25/120 ms | 10/90 ms | 250 ms | 12 digits | |
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Caribbean | N | 25/120 ms | 10/90 ms | 250 ms | 12 digits | |
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Global | N | 25/120 ms | 10/90 ms | 250 ms | 12 digits | |
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Hong Kong | N | 25/120 ms | 10/90 ms | 250 ms | 12 digits | |
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Mexico | N | 25/120 ms | 10/90 ms | 250 ms | 12 digits | |
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New Zealand | N | 15/200 ms | 15/200 ms | 200 ms | 16 digits | |
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North America | N | 25/120 ms | 10/90 ms | 250 ms | 12 digits | |
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Poland | N | 51/88 ms | 25/48 ms | 150 ms | 12 digits | |
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United Kingdom | N | 15/200 ms | 15/200 ms | 200 ms | 16 digits | |
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