Hi, How does a hotel/motel in USA determine when to charge for long distance calls made by guests ? Could they be using :
1) Reverse Battery Answer Supervision or Line polarity reversal 2) Pulse Metering or something else ? Can anyone tell me what types of call answer supervision options are available on loop start lines from local phone companies in the USA ? Any help on this is appreciated. Thank you, Mr. YH Loke Computer Protocol Malaysia http://www.cpm.com.my
