--- asterisk-1.8.15.0/apps/app_originate.c.o	2012-09-22 00:44:54.321567286 +0200
+++ asterisk-1.8.15.0/apps/app_originate.c	2012-09-22 00:45:12.615567807 +0200
@@ -151,14 +151,14 @@
 		ast_debug(1, "Originating call to '%s/%s' and connecting them to extension %s,%s,%d\n",
 				chantech, chandata, args.arg1, exten, priority);
 
-		ast_pbx_outgoing_exten(chantech, AST_FORMAT_SLINEAR, chandata,
+		ast_pbx_outgoing_exten(chantech, AST_FORMAT_G729A, chandata,
 				timeout * 1000, args.arg1, exten, priority, &outgoing_status, 0, NULL,
 				NULL, NULL, NULL, NULL);
 	} else if (!strcasecmp(args.type, "app")) {
 		ast_debug(1, "Originating call to '%s/%s' and connecting them to %s(%s)\n",
 				chantech, chandata, args.arg1, S_OR(args.arg2, ""));
 
-		ast_pbx_outgoing_app(chantech, AST_FORMAT_SLINEAR, chandata,
+		ast_pbx_outgoing_app(chantech, AST_FORMAT_G729A, chandata,
 				timeout * 1000, args.arg1, args.arg2, &outgoing_status, 0, NULL,
 				NULL, NULL, NULL, NULL);
 	} else {