Inside Macintosh: Telephony /

Chapter 1 - Introduction to Telephony on the Macintosh / Telephone Manager Initialization Reference

Constants

Gestalt Selector and Response Values

You can pass the gestaltTeleMgrAttr selector to the Gestalt function to get information about the Telephone Manager. Gestalt returns information to you by setting or clearing bits in the response parameter. The bits currently used are defined by constants:

enum {
   gestaltTeleMgrAttr             = 'tele',
   gestaltTeleMgrPresent          = 0,
   gestaltTeleMgrPowerPCSupport   = 1,
   gestaltTeleMgrSoundStreams     = 2,
   gestaltTeleMgrAutoAnswer       = 3,
   gestaltTeleMgrIndHandset       = 4,
   gestaltTeleMgrSilenceDetect    = 5,
   gestaltTeleMgrNewTELNewSupport = 6
};

Constant descriptions

gestaltTeleMgrPresent

This bit is set if the Telephone Manager is present in the current operating environment.

gestaltTeleMgrPowerPCSupport

This bit is set if the current machine contains a PowerPC microprocessor.

gestaltTeleMgrSoundStreams

This bit is set if the Telephone Manager supports sound streams (for example, the TELGetDNSoundInput and TELGetDNSoundOutput functions).

gestaltTeleMgrAutoAnswer

This bit is set if the Telephone Manager supports the Auto-answer feature (that is, incoming calls are routed to a client application that has requested such routing).

gestaltTeleMgrIndHandset

This bit is set if the Telephone Manager supports an independent handset.

gestaltTeleMgrSilenceDetect

This bit is set if the Telephone Manager can detect silence on a telephone line.

gestaltTeleMgrNewTELNewSupport

This bit is set if the Telephone Manager supports the TELNewWithResult function.

Note

For complete information about the Gestalt function, see the chapter "Gestalt Manager" in Inside Macintosh: Operating System Utilities.