[SR-Users] Kamailio IMS Deployment

Hello everyone, I'm new to Kamailio environment, and trying to implement Kamailio IMS services with FHoSS HSS on a single Ubuntu 18.04 . I have followed instructions on the Kamailio website, but faced some issues. I have managed to install FHoSS, but when I try to start HSS, i got following errors: [Thread-24] ERROR de.fhg.fokus.diameter.DiameterPeer.peer.StateMachine - StateMachine: Peer icscf.mnc001.mcc001.3gppnetwork.org:3869 not responding to connection attempt [Thread-24] ERROR de.fhg.fokus.diameter.DiameterPeer.peer.StateMachine - StateMachine: Peer scscf.mnc001.mcc001.3gppnetwork.org:3870 not responding to connection attempt I have started CSCFs by following commands: root@ulak-HP-ZBook-15:/opt/OpenIMSCore/FHoSS/deploy# kamailio -f /etc/kamailio/pcscf/kamailio-pcscf.cfg loading modules under config path: /usr/lib/x86_64-linux-gnu/kamailio/modules Listening on udp: 10.3.0.188 [10.3.0.188]:5060 Aliases: *: pcscf.mnc001.mcc001.3gppnetwork.org:* ************************************************ root@ulak-HP-ZBook-15:/opt/OpenIMSCore/FHoSS/deploy# kamailio -f /etc/kamailio/scscf/kamailio-scscf.cfg loading modules under config path: /usr/lib/x86_64-linux-gnu/kamailio/modules Listening on udp: 10.3.0.188 [10.3.0.188]:6060 Aliases: *: scscf.mnc001.mcc001.3gppnetwork.org:* *********************************************** root@ulak-HP-ZBook-15:/opt/OpenIMSCore/FHoSS/deploy# kamailio -f /etc/kamailio/icscf/kamailio-icscf.cfg loading modules under config path: /usr/lib/x86_64-linux-gnu/kamailio/modules Listening on udp: 10.3.0.188 [10.3.0.188]:4060 tcp: 10.3.0.188 [10.3.0.188]:4060 Aliases: *: icscf.mnc001.mcc001.3gppnetwork.org:* How do I ensure that CSCFs work? And also how can I troubleshoot error that I've faced on FHoSS. I have attached my config files. Any helps will be appreciated. Best regards, Yağız --