2.2.3.1.36 LINEDIGITMODE_Constants

The LINEDIGITMODE_Constants are bit-flag constants that describe different types of inband digit generation.

Constant/value

Description

LINEDIGITMODE_PULSE

0x00000001

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

LINEDIGITMODE_DTMF

0x00000002

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

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