Hi I am fine with registered users sending and receiving calls from/to PSTN. Now I route registered users calls to/from PSTN fine Kamailailio<----->freeswitch<------------>IVR (PSTN) Best Practice for routing Trusted peers (inbound) to IVR/PSTN (SIP Trunking Service) Trusted peer1 -----> Kamailio -----> freeswitch ------------> IVR (PSTN) Where do I/ how do I route calls from trusted peers not to users but down to PSTN IVR? Say for example Trusted Peer 1 sends to my Kamailio IP sip:398998xxxx@xx.xx.xx.xx:5060 As I add a Trusted peer I would like to add a route and insert prefix for when it routes to freeswitch ---> Do I use carrier route or LCR etc, I want to be able to add trusted peers but add routes without editing the config file and restarting Kamailio. The reason I ask is I'd prefer to do it correct method at the start as it's a nightmare changing once I have lots of trusted peers. Thank you Tony Turner