diff --git a/kamailio/db_queries_kazoo.cfg b/kamailio/db_queries_kazoo.cfg
index 89018b7..7eba570 100644
--- a/kamailio/db_queries_kazoo.cfg
+++ b/kamailio/db_queries_kazoo.cfg
@@ -1,7 +1,7 @@
 ####### Database queries ########
 #!substdef "!KZQ_CHECK_MEDIA_SERVER_INSERT!insert into dispatcher (setid, destination) select \$var(SetId), \"\$var(MediaUrl)\" where not exists(select * from dispatcher where destination = \"\$var(MediaUrl)\")!g"
 #!substdef "!KZQ_COUNT_ALL_SUBSCRIBERS!select a.event, count(distinct watcher_username || \"@\" || watcher_domain) count_unique, count(*) count from event_list a, active_watchers b where b.event = a.event group by a.event!g"
-#!substdef "!KZQ_COUNT_PRESENTITIES!select event, (select count(*) from presentity b where username = \"\$(kzE{kz.json,From}{uri.user})\" and domain = \"\$(kzE{kz.json,From}{uri.domain})\" and b.event = a.event) count from event_list a!g"
+#!substdef "!KZQ_COUNT_PRESENTITIES!select event, (select count(*) from presentity b where username = \"\$(var(payload){kz.json,From}{uri.user})\" and domain = \"\$(var(payload){kz.json,From}{uri.domain})\" and b.event = a.event) count from event_list a!g"
 #!substdef "!KZQ_COUNT_SUBSCRIBERS!select event, (select count(*) from active_watchers b where presentity_uri = \"\$var(presentity)\" and b.event = a.event) count from event_list a!g"
 #!substdef "!KZQ_EVENT_PRESENCE_RESET_DELETE!delete from presentity where domain=\"\$(kzE{kz.json,Realm})\" and username = \"\$(kzE{kz.json,Username})\"!g"
 #!substdef "!KZQ_HANDLE_NEW_SUBSCRIBE_DELETE1!delete from active_watchers where callid = \"\$ci\"!g"
@@ -11,3 +11,4 @@
 #!substdef "!KZQ_RESET_PUBLISHER_UPDATE!update active_watchers set expires = \$TS where id in (select b.id from presentity a inner join active_watchers b on a.username = b.to_user and a.domain = b.to_domain and a.event = b.event where a.sender = \"\$var(MediaUrl)\")!g"
 #!substdef "!KZQ_PRESENCE_SEARCH_DETAIL!select * from active_watchers_log where presentity_uri = \"\$var(presentity_uri)\"!g"
 #!substdef "!KZQ_PRESENCE_SEARCH_SUMMARY!select * from active_watchers where watcher_domain = \"\$var(Domain)\"!g"
+#!substdef "!KZQ_HAS_PRESENTITY!select count(*) as count from presentity where username = \"\$subs(to_user)\" and domain = \"\$subs(to_domain)\" and event = \"\$subs(event)\"!g"
diff --git a/kamailio/defs.cfg b/kamailio/defs.cfg
index 5b38bc5..35cecc1 100644
--- a/kamailio/defs.cfg
+++ b/kamailio/defs.cfg
@@ -83,4 +83,20 @@
 #!endif
 #!endif
 
+#!ifndef MEDIA_SERVERS_HASH_SIZE
+#!substdef "!MEDIA_SERVERS_HASH_SIZE!256!g"
+#!endif
+
+#!ifndef KZ_PRESENCE_AMQP_PUBLISH
+#!define KZ_PRESENCE_AMQP_PUBLISH 0
+#!endif
+
+#!ifndef KZ_PRESENCE_REQUEST_RESUBSCRIBE_PROBE
+#!define KZ_PRESENCE_REQUEST_RESUBSCRIBE_PROBE 0
+#!endif
+
+#!ifndef KZ_PRESENCE_REQUEST_PROBE
+#!define KZ_PRESENCE_REQUEST_PROBE 1
+#!endif
+
 # vim: tabstop=4 softtabstop=4 shiftwidth=4 expandtab
diff --git a/kamailio/nodes-role.cfg b/kamailio/nodes-role.cfg
index fc3de7b..3fb5e29 100644
--- a/kamailio/nodes-role.cfg
+++ b/kamailio/nodes-role.cfg
@@ -5,7 +5,7 @@
 #!endif
 
 #!ifndef NODES_FUDGE_FACTOR
-#!define NODES_FUDGE_FACTOR 3
+#!define NODES_FUDGE_FACTOR 10
 #!endif
 
 modparam("htable", "htable", "nodes=>size=8;initval=0;autoexpire=180;");
diff --git a/kamailio/presence-reset.cfg b/kamailio/presence-reset.cfg
index 7a8193d..bad71a8 100644
--- a/kamailio/presence-reset.cfg
+++ b/kamailio/presence-reset.cfg
@@ -40,6 +40,7 @@ route[RESET_PUBLISHER]
 
 route[RESET_ALL]
 {
+   xlog("L_INFO", "$var(Msg-ID)|reset|received presence reset ALL\n");
    sql_query("exec", "delete from presentity");
    $var(presentities) = $sqlrows(exec);
    xlog("L_INFO", "$(kzE{kz.json,Msg-ID})|reset|removed $var(presentities) presentities\n");
diff --git a/kamailio/presence-role.cfg b/kamailio/presence-role.cfg
index 0d93714..29ae490 100644
--- a/kamailio/presence-role.cfg
+++ b/kamailio/presence-role.cfg
@@ -53,7 +53,9 @@ modparam("nat_traversal", "keepalive_state_file", "KAZOO_DATA_DIR/keep_alive_sta
 modparam("nat_traversal", "keepalive_interval", 45)
 #!endif
 
-kazoo.presence_sync_amqp = 0 descr "sync subscriptions to amqp"
+kazoo.presence_sync_amqp = KZ_PRESENCE_AMQP_PUBLISH descr "sync subscriptions to amqp"
+kazoo.presence_request_probe = KZ_PRESENCE_REQUEST_PROBE descr "request probe for new subscriptions"
+kazoo.presence_request_resubscribe_probe = KZ_PRESENCE_REQUEST_RESUBSCRIBE_PROBE descr "request probe for resubscriptions"
 
 #!ifdef FAST_PICKUP_ROLE
 #!include_file "fast-pickup-role.cfg"
@@ -158,8 +160,9 @@ route[HANDLE_NEW_SUBSCRIBE]
         }
 
         if (handle_subscribe()) {
-            route(SUBSCRIBE_AMQP);
             xlog("L_INFO","$ci|end|new $hdr(Event) subscription from $fU to $tU in realm $fd :  $sht(first=>$ci) : $sht(first=>$fU::$tU::$fd::$hdr(Event))\n");
+            route(SUBSCRIBE_AMQP);
+            route(REQUEST_PROBE);
         } else  {
             xlog("L_INFO", "$ci|stop|error $T_reply_code for new $hdr(Event) subscription from $fU to $tU in realm $fd\n");
         }
@@ -178,6 +181,37 @@ route[SUBSCRIBE_AMQP]
     }
 }
 
+route[REQUEST_PROBE]
+{
+    if( (@cfg_get.kazoo.presence_request_probe == 1 && (!has_totag()))
+       || (@cfg_get.kazoo.presence_request_resubscribe_probe == 1 && has_totag()) ) {
+       if( route(HAS_PRESENTITY) == 0) {      
+           if($hdr(event) == "message-summary") {
+              $var(mwi) = $tU;
+              route(REQUEST_MWI);
+           } else {
+               if($tU =~ "\*98") {
+                 $var(mwi) = $(tU{s.substr,3,0});
+                 route(REQUEST_MWI);
+               } else {
+                   xlog("L_INFO", "$ci|sub|requesting $hdr(Event) probe for $subs(to_user) in realm $subs(to_domain)\n");
+                   $var(rk) = "probes." + $hdr(Event);
+                   $var(amqp_payload_request) = $_s({"Event-Category" : "presence", "Event-Name" : "probe", "Event-Package" : "$hdr(event)", "Username" : "$tU", "Realm" : "$fd", "Call-ID" : "$ci"});
+                   kazoo_publish("presence", "$var(rk)", $var(amqp_payload_request));
+               }
+           }
+       }
+    }
+}
+
+route[REQUEST_MWI]
+{
+   xlog("L_INFO", "$ci|sub|requesting mwi probe for $var(mwi) in realm $subs(to_domain)\n");
+   $var(rk) = "mwi_queries." + $(subs(to_domain){kz.encode});
+   $var(amqp_payload_request) = $_s({"Event-Category" : "presence", "Event-Name" : "mwi_query", "Username" : "$var(mwi)", "Realm" : "$fd", "Call-ID" : "$ci"});
+   kazoo_publish("presence", "$var(rk)", $var(amqp_payload_request));
+}
+
 route[HANDLE_PUBLISH]
 {
     if (is_method("PUBLISH")) {
@@ -194,6 +228,23 @@ route[HANDLE_PUBLISH]
     }
 }
 
+route[HAS_PRESENTITY]
+{
+    $var(pr_user) = $subs(to_user);
+    $var(pr_domain) = $subs(to_domain);
+    $var(pr_event) = $subs(event);
+    $var(Query) = $_s(KZQ_HAS_PRESENTITY);
+    $var(res) = 0;
+    if (sql_xquery("cb", "$var(Query)", "subs") == 1)
+    {
+        if($xavp(subs) != $null) {
+           $var(res) = $xavp(subs=>count);
+           pv_unset("$xavp(subs)");
+        }
+    }
+    return $var(res);
+}
+
 route[COUNT_PRESENTITIES]
 {
     $var(Query) = $_s(KZQ_COUNT_PRESENTITIES);