When specifying an invalid timeout to Dial, take it

to mean that no timeout is desired.

(closes issue #13625)
Reported by: atis



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@149279 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -145,6 +145,8 @@ Application Changes
    'UNSUPPORTED'.  This change makes SendImage() more consistent with other
    applications.
  * Park has a new option, 's', which silences the announcement of the parking space number.
+ * A non-numeric, zero, or negative timeout specified to Dial() will now be interpreted as
+   invalid input and will be assumed to mean that no timeout is desired.
 
 SIP Changes
 -----------

apps/app_dial.c

@@ -1589,8 +1589,10 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 		to = atoi(args.timeout);
 		if (to > 0)
 			to *= 1000;
-		else
-			ast_log(LOG_WARNING, "Invalid timeout specified: '%s'\n", args.timeout);
+		else {
+			ast_log(LOG_WARNING, "Invalid timeout specified: '%s'. Setting timeout to infinite\n", args.timeout);
+			to = -1;
+		}
 	}
 
 	if (!outgoing) {