FTDM_COMMAND_SET_PRE_BUFFER_SIZE  990 mod_freetdm/mod_freetdm.c 					ftdm_channel_command(tech_pvt->ftdmchan, FTDM_COMMAND_SET_PRE_BUFFER_SIZE, &tmp);
FTDM_COMMAND_SET_PRE_BUFFER_SIZE 1096 mod_freetdm/mod_freetdm.c 			ftdm_channel_command(fchan, FTDM_COMMAND_SET_PRE_BUFFER_SIZE, &tmp);
FTDM_COMMAND_SET_PRE_BUFFER_SIZE 3078 src/ftdm_io.c  	case FTDM_COMMAND_SET_PRE_BUFFER_SIZE: