Hello Everyone,
I am trying  forward NOTIFY to  client.
My setup is 


              PBX Server  ---- local lan ---kamailio ---- internet ---- client 


The problem with whole setup that kamailio is not forwarding NOTIFY to client.
Here are log.



U 2016/10/19 14:23:29.581609 10.18.130.50:5160 -> 10.18.130.46:5060
NOTIFY sip:10101@10.18.130.46:5060 SIP/2.0.
Via: SIP/2.0/UDP 10.18.130.50:5160;rport;branch=z9hG4bKPjONocd4FvI5LkOmSR6ZCA5Z1f7SYDb3Ty.
From: <sip:8101@networklab.ca>;tag=ziApds23FQsPL2zd6q8pCUlwW.jwa6mK.
To: "Slava" <sip:10101@networklab.ca>;tag=734f813f.
Contact: <sip:10.18.130.50:5160>.
Call-ID: A0bJWg8v0nGmtUmiHzUixQ...
CSeq: 18547 NOTIFY.
Route: <sip:kamailio_local_ip:5060;lr;r2=on;ftag=734f813f>.
Route: <sip:kamailio_public_ip:5081;transport=tls;lr;r2=on;ftag=734f813f>.
Event: presence.
Subscription-State: active;expires=413.
Allow-Events: message-summary, presence, dialog, refer.
Max-Forwards: 70.
User-Agent: FPBX-13.0.188.9(14.0.2).
Content-Type: application/pidf+xml.
Content-Length: 579.
.
<?xml version="1.0" encoding="UTF-8"?>
<presence entity="sip:8101@10.18.130.50:5160" xmlns="urn:ietf:params:xml:ns:pidf" xmlns:pp="urn:ietf:params:xml:ns:pidf:person" xmlns:es="urn:ietf:params:xml:ns:pidf:rpid:status:rpid-status" xmlns:ep="urn:ietf:params:xml:ns:pidf:rpid:rpid-person">
<note>On the phone</note>
<tuple id="8101">
<status>
<basic>closed</basic>
</status>
<contact priority="1">&quot;Slava&quot; &lt;sip:10101@networklab.ca&gt;</contact>
</tuple>
<pp:person>
<status>
<ep:activities>ep:busy</ep:activities>
</status>
</pp:person>
</presence>


U 2016/10/19 14:23:32.045388 10.18.130.46:5060 -> 10.18.130.50:5160
SIP/2.0 408 Request Timeout.
Via: SIP/2.0/UDP 10.18.130.50:5160;rport=5160;branch=z9hG4bKPju05rMNlzhfukLvaq4ELmq.QI4GBqDN-m;received=10.18.130.50.
From: <sip:8101@networklab.ca>;tag=Yzy2m6O2AFT6rGSDBmo6PjcGaCWT1i5H.
To: "Slava" <sip:10101@networklab.ca>;tag=ad5a945e.
Call-ID: 2pq5iebmtLdB_OsMUs3EOg...
CSeq: 14623 NOTIFY.
Server: kamailio (4.3.4 (x86_64/linux)).
Content-Length: 0.

Any help thank you.



volga629