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1、Administration for Busy Tone Detection (BTD),Administration for BTD:System-Parameters Country-Options,Administration for BTD:Trunk-Group (Before CM3.1, it is page 1),Administration for BTD:Trunk-Group cntd. (It is page 3 before CM3.1),Administration for BTD:System-Parameters OCM-Call-ClassificationN
2、ote: This form is appeared only when Busy Tone Detection is enabled in the system-parameter country-options form.,Administration for BTD:System-Parameters OCM-Call-Classification cntd.,Standard Busy tone in China is 350ms on, 350ms off. But you can adjust above setting, if SP CO system is not providing standard Busy tone. Recommend repeating cycle (on-off) to ensure more accurate disconnect.,Administration for BTD,Note: You should not use BTD on trunks used for Remote access feature.,