Added option to change DTMF decoding threshold level

[lcr.git] / interface.c

diff --git a/interface.c b/interface.c
index b9dd275..33f0c10 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -751,6 +751,22 @@ static int inter_nodtmf(struct interface *interface, char *filename, int line, c
        ifport->nodtmf = 1;
        return(0);
 }
+static int inter_dtmf_threshold(struct interface *interface, char *filename, int line, char *parameter, char *value)
+{
+       struct interface_port *ifport;
+
+       /* port in chain ? */
+       if (!interface->ifport) {
+               SPRINT(interface_error, "Error in %s (line %d): parameter '%s' expects previous 'port' definition.\n", filename, line, parameter);
+               return(-1);
+       }
+       /* goto end of chain */
+       ifport = interface->ifport;
+       while(ifport->next)
+               ifport = ifport->next;
+       ifport->dtmf_threshold = atoi(value);
+       return(0);
+}
 static int inter_filter(struct interface *interface, char *filename, int line, char *parameter, char *value)
 {
        char *p, *q;
@@ -1294,6 +1310,10 @@ struct interface_param interface_param[] = {
        "Disables DTMF detection for this interface.\n"
        "This parameter must follow a 'port' parameter."},
 
+       {"dtmf-threshold", &inter_dtmf_threshold, "",
+       "Set threshold value for minimum DTMF tone level.\n"
+       "This parameter must follow a 'port' parameter."},
+
        {"filter", &inter_filter, "<filter> <parameters>",
        "Adds/appends a filter. Filters are ordered in transmit direction.\n"
        "gain <tx-volume> <rx-volume> - Changes volume (-8 .. 8)\n"