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LINEBUSYMODE_ Constants

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The LINEBUSYMODE_ bit-flag constants describe different busy signals that the switch or network can generate. These busy signals typically indicate that a different resource that is required to make a call is currently in use.

LINEBUSYMODE_STATION

The busy signal indicates that the called party's station is busy. This is usually signaled with a normal busy tone.

LINEBUSYMODE_TRUNK

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

LINEBUSYMODE_UNKNOWN

The busy signal's specific mode is currently unknown but may become known later.

LINEBUSYMODE_UNAVAIL

The busy signal's specific mode is unavailable and will not become known.

Remarks

The high-order 16 bits can be assigned for device-specific extensions. The low-order 16 bits are reserved.

Note

Busy signals can be sent as inband tones or out-of-band messages. TAPI makes no assumption about the specific signaling mechanism.

Requirements

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