I installed the card OpenVox B200P and I can not put into operation affects the inverter DTMF detection. In the manual is presented: “DTMF detection on all B-channels.”
When you call the function:
val = DAHDI_TONEDETECT_ON | DAHDI_TONEDETECT_MUTE;
int res = ioctl (FILE_DESKRIPTOR, DAHDI_TONEDETECT, & val);
it returns -1. Detection does not work. T1/E1/J1 cards “vpmdtmfsupport” parameter exist, but for the BRI card does not exist.
Please advice how to enable hardware DTMF detection marks on card OpenVox BRI.
OS: CentOS 5.7
Kernel version: 2.6.18-274.17.1.el5
Driver: dahdi-linux-complete-2.4.1.2 +2.4.1
Thank you David Bazala, Prague, Czech Republic