add mode goodies to ilbc

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4349 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_core.c

@@ -821,7 +821,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_codec_init(switch_codec_t *codec, ch
 		return SWITCH_STATUS_GENERR;
 	}
 
-	if (mode && strncasecmp(mode, "mode=", 5)) {
+	if (!strcasecmp(codec_name, "ilbc") && mode && strncasecmp(mode, "mode=", 5)) {
 		int mms;
 		mode += 5;
 		if (mode) {