Constants
This section describes the constants that identify the various terminal, directory number, and call appearance messages. You use these constants to identify which messages a telephone tool supports and to specify which messages you want your message handler to receive. This section also describes the constants used by various Telephone Manager functions.
- IMPORTANT
- To receive messages, you must create and register message handling routines. For information on how to write a message handling routine, see "Application-Defined Message Functions" on page 5-56.
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Subtopics
- Terminal Messages
- Directory Number Messages
- Call Appearance Messages
- Terminal States
- Terminal Errors
- Key Press Constants
- Call Forward Types and States
- Do Not Disturb States
- Voice Mail Messages
- Directory Number Selection States
- Call Progress Signals
- Audible Digit States
- Callback Activity Types
- Conference Activity States
- Conference Drop States
- Conference Split States
- Call Deflect Messages
- Disconnect Location Messages
- Disconnect Types
- Fax Tone States
- Modem Tone States
- Hold States
- Intercom States
- Paging States
- MADN In-Use States
- Outgoing Origination States
- Call Parking States
- Call Pickup States
- Call Rejection States
- Transfer Constants
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