Hello Thomas, You can configure the dispatcher module to skip DNS resolution at startup. Have a look to this docs section: "16 (bit at index 4 - 1 <<4) - skip DNS A/AAAA resolve at startup, useful when the hostname of the destination address is a NAPTR or SRV record only. Such addresses cannot be matched anymore with ds_is_from_list(...)." 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 Thomas Cavill Sent: Tuesday, March 3, 2020 5:04 PM To: sr-users(a)lists.kamailio.org Subject: [SR-Users] Using DNS hostname with the Dispatcher module to determine online routes Hi all, I am wondering if it is possible for the dispatcher module to monitor multiple endpoints that resolve from a single hostname using DNS. Can I configure a single DNS name in the dispatcher table which resolves to 3 IP addresses and have them monitored by OPTIONS pings, and then select the first one that is marked as active to route requests to? I haven't found much help online to know if this is possible/supported. i.e. Does the dispatcher module support monitoring of multiple results returned from DNS NAPTR records? Thanks, Tom