4.16.45. PolarityDetection (Polarity Flag)

Description: The PolarityDetection parameter defines whether or not the CO reverses battery polarity as the first step before sending the call ring. In Japan, the CO (Nippon Telephone and Telegraph, NTT) reverses the loop polarity prior to sending a call. When PolarityDetection parameter is enabled, the polarity reversal sent from the CO in NTT is used when detecting the incoming call.

Values:

• 0 = Disable polarity reversal (normal polarity)
• 1 = Enable polarity reversal (reverse polarity)

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