1.7.9. Play a User-Defined Tone

The GCIS_EXID_PLAYTONE extension ID allows the application to play a user-defined tone.

The following table provides the parameter inputs for the gc_Extension( ) function.

Parameter	Input
target_type	GCTGT_GCLIB_CHAN
target_id	line device handle of the device
ext_id	GCIS_EXID_PLAYTONE
parmblkp	set_id - GCIS_SET_TONE
	parm_id - GCIS_PARM_TONE_DURATION
	values - range is 1 to 65535. Set to -1 to play forever
	value_type - unsigned short
	parm_id - GCIS_PARM_TONE_FREQ1 -
	values - range is 200 to 3100 Hz.
	value_type - unsigned short
	parm_id - GCIS_PARM_TONE_AMP1
	values - range is -40 to +3 dB
	value_type - short
	parm_id - GCIS_PARM_TONE_FREQ2-
	values - range is 200 to 3100 Hz
	value_type - unsigned short
	parm_id - GCIS_PARM_TONE_AMP2
	values - range is -40 - +3 dB.
	value_type - short
	parm_id - GCIS_PARM_TONE_ON1
	values - 1 to 65535 ms. Set to 1 or greater for continuous tone.
	value_type - unsigned short
	parm_id - GCIS_PARM_TONE_OFF1
	values - range is 0 to 65534 ms. Set to 0 to play a continuous tone.
	value_type - unsigned short
mode	EV_SYNC, EV_ASYNC

Termination Events

• GCEV_EXTENSION with ext_id GCIS_EXEV_PLAYTONE - indicates that the tone was successfully played.
• GCEV_EXTENSION with ext_id GCIS_EXEV_PLAYTONEFAIL - indicates that the request to play a tone failed.

Note: The channel must be in the IDLE state when calling this function. This command is a host tone command that allows the application to play a user-defined tone. This command cannot be used to set or play the firmware-applied call progress tones. The call progress tones and user-defined tones operate independently, except that when the firmware is playing a tone, the application may not play a tone on the same channel at the same time. For information on changing the firmware-applied call progress tones, see the GCIS_EXID_TONEREDEFINE extension ID description.

This extension ID is not supported for the BRI/2 board or for PRI protocols.

Example

 int extPlayTone (LINEDEV handle)
{
         GC_PARM_BLKP parm_blkp = NULL, ret_blkp = NULL;
         unsigned long mode;
         int ret_val = 0;
         GC_INFO  t_Info;
         short stmp3;
         unsigned short ustmp4; 
         ustmp4 = 400;
         gc_util_insert_parm_ref(&parm_blkp, GCIS_SET_TONE,
                 GCIS_PARM_TONE_DURATION, sizeof( unsigned short ), &ustmp4);
         ustmp4 = (unsigned short)350;
         gc_util_insert_parm_ref( &parm_blkp, GCIS_SET_TONE,	 	 	 	 
                 GCIS_PARM_TONE_FREQ1, sizeof( unsigned short ), ustmp4);
          stmp3 = (short)-10;
         gc_util_insert_parm_ref( &parm_blkp, GCIS_SET_TONE, GCIS_PARM_TONE_AMP1,
                 sizeof( short ), &stmp3);
          ustmp4 = (unsigned short)460;
         gc_util_insert_parm_ref( &parm_blkp, GCIS_SET_TONE,
                 GCIS_PARM_TONE_FREQ2, sizeof( unsigned short ), &ustmp4);
          stmp3 = (short)-10;
         gc_util_insert_parm_ref( &parm_blkp, GCIS_SET_TONE,
                 GCIS_PARM_TONE_AMP2, sizeof( short ), &stmp3);
          ustmp4 = (unsigned short)400;
          gc_util_insert_parm_ref( &parm_blkp, GCIS_SET_TONE,
                 GCIS_PARM_TONE_ON1, sizeof( unsigned short ), &ustmp4);
          ustmp4 = (unsigned short)0;
         gc_util_insert_parm_ref( &parm_blkp, GCIS_SET_TONE,
                 GCIS_PARM_TONE_OFF1, sizeof( unsigned short ), &ustmp4);
          mode = EV_SYNC
          ret_val = gc_Extension( GCTGT_GCLIB_CHAN, handle
                   GCIS_EXID_PLAYTONE, parm_blkp, &ret_blkp, mode);
         if ( ret_val )
         {
                ret_val = gc_ErrorInfo(&t_Info);
                if (ret_val == GC_SUCCESS) {
                         printf("gc_ErrorInfo() successfully called\n");
                         PrintGC_INFO(&t_Info);
                } else {
                         printf("gc_ErrorInfo() call failed\n");
                }
         } 
         	  	 gc_util_delete_parm_blk( ret_blkp );
         gc_util_delete_parm_blk( parm_blkp );
         return ret_val;
}

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