[SR-Docs] FW: sip router getting started guide

Hi, I am a newbie to sip router project. I need some documentation to get started. I could find a nice link on the kamailio.org site to build and install the package and run the server. I need some documentation to do more from there. While browsing to get more information, it seemed there is a SER Getting started guide. But I couldn't find that in any of the related sites. The iptel.org has some links which are not working. It is bit confusing since there are multiple sites. Could you please guide me to get all available documentation to get started. Thanks, Ajay