There is an old, but likely still pretty useful devel guide that presents internal api: * https://www.asipto.com/pub/kamailio-devel-guide/ You can start looking at another (small) module, like speedial, alias_db to understand better how a module should be built. Then ask specific questions on sr-dev(a)lists.kamailio.org when you need further guidance. This tracker is not inteded for active discussions related to new features. I am closing this one. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/2899#issuecomment-950881086