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LINEDIGITMODE (Windows Embedded CE 6.0)

1/6/2010

These constants describe different types of inband digit generation.

The following table shows the LINEDIGITMODE constants.

Value Description

LINEDIGITMODE_DTMF = 0x00000002

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

LINEDIGITMODE_DTMFEND = 0x00000004

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

LINEDIGITMODE_PULSE = 0x00000001

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

Remarks

These constants cannot be extended. 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. In order to detect digits sent as pulses, the remote device must be able to detect these sequences of 1 to 10 audible clicks.

Requirements

Header tapi.h
Windows Embedded CE Windows CE 3.0 and later

See Also

Reference

TAPI Constants