--- asterisk/main/channel.c.ORIG	2006-11-06 12:55:34.000000000 -0600
+++ asterisk/main/channel.c	2006-11-06 12:56:42.000000000 -0600
@@ -4155,7 +4155,11 @@
 	c = ast_strdupa(s);
 	
 	while ((piece = strsep(&c, ","))) {
-		if (sscanf(piece, "%d-%d", &start, &finish) == 2) {
+		if (strcasecmp(piece, "none") == 0) {
+			/* No groups */
+			group = 0;
+			break;
+		} else if (sscanf(piece, "%d-%d", &start, &finish) == 2) {
 			/* Range */
 		} else if (sscanf(piece, "%d", &start)) {
 			/* Just one */