You need to load the textops module. loadmodule "/usr/local/lib/ser/modules/textops.so" Zeus -----Original Message----- From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of jimmy huang Sent: Friday, 23 April 2004 4:25 PM To: serusers(a)lists.iptel.org Subject: [Serusers] search in ser.conf - unknown command ?? Hi all: I am trying nathelper module refer to (http://www.informatik.uni-bremen.de/~prelle/terena/cookbook/main/ch04s07.ht ml) but when run ser , it say unknown command , missing load module? and the error is if (method == "REGISTER" || ! search("^Record-Route:")) { and each line when use "search" , always says it has errors can anyone give me any idea what was wrong ? thanks jimmy