LINETONEMODE_ Constants

The LINETONEMODE_ constants describe different selections used when generating line tones.

LINETONEMODE_CUSTOM

A custom tone, defined by its component frequencies, of type LINEGENERATETONE.

LINETONEMODE_RINGBACK

A ringback tone. Exact definition is service-provider defined.

LINETONEMODE_BUSY

A busy tone. Exact definition is service-provider defined.

LINETONEMODE_BEEP

A beep, such as used to announce the beginning of a recording. Exact definition is service-provider defined.

LINETONEMODE_BILLING

A billing information tone, such as a credit card prompt tone. Exact definition is service-provider-defined.

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

These constants are used to define tones to be generated inband over a call to the remote party. Note that tone detection of non-custom tones does not use these constants.

See Also

LINE_GENERATE, LINEGENERATETONE, TSPI_lineGenerateTone