diff --git a/kamailio/registrar-role.cfg b/kamailio/registrar-role.cfg
index 814b612..c8eefc5 100644
--- a/kamailio/registrar-role.cfg
+++ b/kamailio/registrar-role.cfg
@@ -51,8 +51,13 @@ route[HANDLE_REGISTER]
             force_rport();
             fix_nated_register();
         }
-        setbflag(FLB_NATB);
-        setbflag(FLB_NATSIPPING);
+
+        ## KAZOO-1846: Cisco SPA8000 freaks out on options pings
+        if (!($ua =~ "Linksys/SPA8000")) {
+            setbflag(FLB_NATB);
+            setbflag(FLB_NATSIPPING);
+        }
+
         #!endif
 
         if (is_present_hf("Authorization")) {