Lines Matching refs:dtmf
38 * example: 0x20204 one HFC-4S with dtmf detection and 128 timeslots on PCM
1790 * read dtmf coefficients
1801 int dtmf = 0;
1808 printk(KERN_DEBUG "%s: dtmf detection irq\n", __func__);
1819 printk(KERN_DEBUG "%s: dtmf channel %d:",
1822 dtmf = 1;
1890 hc->dtmf = dtmf;
1891 if (dtmf)
3466 if (ch->protocol == ISDN_P_B_RAW && !hc->dtmf
3469 hc->dtmf = 1;
3472 "%s: start dtmf decoder\n",