Hello, no, it‘s not possible. The sockets (in case of UDP) are created and bound on server start. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com<https://gilawa.com/> From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Tihomir Culjaga Sent: Friday, September 17, 2021 12:56 PM To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Subject: [SR-Users] listen directive during runtime Hi, is it possible to add a listen directive during kamailio runtime ? The reason I'm asking this is in a situation when I add a new peering trunk (from a different network segment), I need to add a network interface to the kamailio server and then add a specific listen directive for that interface to reference the socket by name. listen=udp:10.1.1.11 name "mySN1" so i can further reference to a specific socket name when routing SIP messages. Please advise, Regards, Tihomir.