2.2.3.1.16 LINEBUSYMODE_Constants

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The LINEBUSYMODE_Constants are bit-flag constants that describe different busy signals that the switch or network can generate. These busy signals typically indicate that a different resource MUST be used to make a call, or that the current resource is busy.

Constant/value

Description

LINEBUSYMODE_STATION

0x00000001

The busy signal indicates that the station of the called party is busy. This condition is usually signaled with the standard busy tone.

LINEBUSYMODE_TRUNK

0x00000002

The busy signal indicates that a trunk or circuit is busy. This condition is usually signaled with a fast busy tone.

LINEBUSYMODE_UNKNOWN

0x00000004

The specific mode of the busy signal is currently unknown but can become known later.

LINEBUSYMODE_UNAVAIL

0x00000008

The specific mode of the busy signal is unavailable and will not become known.

TAPI makes no assumption about the specific signaling mechanism (inband tones, out-of-band packets, etc.) used to send busy signals.