Hello, if you want to allow only authenticated users you need some database support. Either you use a relational database module like mysql and postgresql or you can use a small engine developed mostly for demos called dbtext. Unfortunately, if you want to use dbtext you will not have support to manage it with serctl. See the documentation of dbtext module (online at: http://iptel.org/ser/doc/modules/html/dbtext.html). If you want to allow any user to register to your SIP server you can turn the authentication off -- it's like that in the default config file unless you have changed it. On 9/30/2003 5:01 AM, Annie Sasidar wrote: You still need a database backend with a stateless proxy if you want to have the authentication enabled, as I said above. Yes, it loads the registrar module and the user location module (usrloc) is configured to use only the memory to store the contact addresses of the users. Either you use some database sytem backend (mysql, postgresql or dbtext) or you turn authentication off and allow any user to register to your SIP server. Best regards, Daniel