Symbol: DTMF_TONE_MASK
drivers/isdn/hardware/mISDN/mISDNisar.c
1510
if ((hh->id == 0) && ((*val & ~DTMF_TONE_MASK) ==
drivers/isdn/hardware/mISDN/mISDNisar.c
1513
char tt = *val & DTMF_TONE_MASK;