(closes issue #10302)

Reported by: litnialex
If a DTMF end frame comes from a channel without a begin and it is going to a technology that only accepts end frames (aka INFO) then use the minimum DTMF duration if one is not in the frame already.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@77460 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/channel.c

@@ -2373,9 +2373,12 @@ static struct ast_frame *__ast_read(struct ast_channel *chan, int dropaudio)
 				}
 			} else {
 				struct timeval now = ast_tvnow();
+				if (ast_test_flag(chan, AST_FLAG_IN_DTMF)) {
 					ast_clear_flag(chan, AST_FLAG_IN_DTMF);
 					if (!f->len)
 						f->len = ast_tvdiff_ms(now, chan->dtmf_tv);
+				} else if (!f->len)
+					f->len = AST_MIN_DTMF_DURATION;
 				if (f->len < AST_MIN_DTMF_DURATION) {
 					ast_set_flag(chan, AST_FLAG_EMULATE_DTMF);
 					chan->emulate_dtmf_digit = f->subclass;