}
/*
+ * incoming pattern from LCR
+ */
+static void lcr_in_pattern(struct chan_call *call, int message_type, union parameter *param)
+{
+ union parameter newparam;
+
+ CDEBUG(call, call->ast, "Incomming pattern indication from LCR.\n");
+
+ if (!call->ast) return;
+
+ /* pattern are indicated only once */
+ if (call->has_pattern)
+ return;
+ call->has_pattern = 1;
+
+ /* request bchannel */
+ if (!call->bchannel) {
+ CDEBUG(call, call->ast, "Requesting B-channel.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+ /* queue PROGRESS, because tones are available */
+ if (call->ast && call->pbx_started)
+ strncat(call->queue_string, "T", sizeof(call->queue_string)-1);
+}
+
+/*
* got dtmf from bchannel (locked state)
*/
void lcr_in_dtmf(struct chan_call *call, int val)
break;
case MESSAGE_PATTERN: // audio available from LCR
+ if (!call->has_pattern)
+ lcr_in_pattern(call, message_type, param);
break;
case MESSAGE_NOPATTERN: // audio not available from LCR
if (!ast_channel_trylock(ast)) { /* succeed */
while(*p) {
switch (*p) {
+ case 'T':
+ CDEBUG(call, ast, "Sending queued PROGRESS to Asterisk.\n");
+ ast_queue_control(ast, AST_CONTROL_PROGRESS);
+ break;
case 'P':
CDEBUG(call, ast, "Sending queued PROCEEDING to Asterisk.\n");
ast_queue_control(ast, AST_CONTROL_PROCEEDING);
call->state = CHAN_LCR_STATE_IN_ALERTING;
}
break;
+ case AST_CONTROL_PROGRESS:
+ CDEBUG(call, ast, "Received indicate AST_CONTROL_PROGRESS from Asterisk.\n");
+ /* request bchannel */
+ if (!call->bchannel) {
+ CDEBUG(call, ast, "Requesting B-channel.\n");
+ memset(&newparam, 0, sizeof(union parameter));
+ newparam.bchannel.type = BCHANNEL_REQUEST;
+ send_message(MESSAGE_BCHANNEL, call->ref, &newparam);
+ }
+ break;
case -1:
CDEBUG(call, ast, "Received indicate -1.\n");
res = -1;