There's a bit of unreachable code in mod_spidermonkey which means that the event_chat_execute function becomes a no-op. This may be intentional, of course, but it doesn't look like it is... static JSBool event_chat_execute(JSContext * cx, JSObject * obj, uintN argc, jsval * argv, jsval * rval) { struct event_obj *eo = JS_GetPrivate(cx, obj); if (eo) { if (argc > 0) { char *app = JS_GetStringBytes(JS_ValueToString(cx, argv[0])); char *arg = NULL; if (argc > 1) { arg = JS_GetStringBytes(JS_ValueToString(cx, argv[1])); } goto end; //-- this code is never executed switch_core_execute_chat_app(eo->event, app, arg); *rval = BOOLEAN_TO_JSVAL(JS_TRUE); return JS_TRUE; } } end: *rval = BOOLEAN_TO_JSVAL(JS_FALSE); return JS_FALSE; } - Niels