LINEDIGITMODE_ Constants

The LINEDIGITMODE_ constants describe different types of inband digit generation.

LINEDIGITMODE_DTMF

Uses DTMF tones to signal digits. Valid digits are 0 through 9, '*', '#', 'A', 'B', 'C', and 'D'.

LINEDIGITMODE_DTMFEND

Uses DTMF tones to signal digits and detect the down edges. Valid digits are 0 through 9, '*', '#', 'A', 'B', 'C', and 'D'.

LINEDIGITMODE_PULSE

Uses rotary pulse sequences to signal digits. Valid digits are 0 through 9.

Remarks

No extensibility. All 32 bits are reserved.

A digit mode can be specified when generating or detecting digits. Note that pulse digits are generated by making and breaking the local loop circuit. These pulses are absorbed by the switch. The remote end merely observes this as a series of inband audio clicks. Detecting digits sent as pulses must therefore be able to detect these sequences of 1 to 10 audible clicks.

Requirements

Requirement	Value
TAPI version	Requires TAPI 2.0 or later
Header	Tapi.h