On Mar 2, 2020, at 2:10 AM, Mohammad Reza Keshavarzianpoor <keshavarzianpoorm(a)gmail.com> wrote:  Hi, I'm new to Kamailio I need to have a kamalio as sip server which do a trunk to NGN Center(like a friend peer trunk in freepbx). I need to outgoing calls go through kamailio and forwarded to ngn(multi did values, a range of numbers ...) extensions will register on kamailio I need incoming calls forwarded to an extension or a pbx server, doesn't matter and both are good ... that server will have heavy traffic about 1000 concurrent calls... I tried a successful kamailio installation but I don't know how to config that for my purpose. even I tried installation of dsiprouter over a fresh debian 9 but stopped on pyspark installation. please give me your helps, advises, hints or ideas! best regards _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users