1. UA
- https://www.kamailio.org/wiki/cookbooks/5.3.x/core#server_header
https://www.kamailio.org/wiki/cookbooks/5.3.x/core#user_agent_header

2. Topo hiding and others
https://kamailio.org/docs/modules/5.3.x/modules/topoh.html
https://kamailio.org/docs/modules/5.3.x/modules/topos.html
https://kamailio.org/docs/modules/5.3.x/modules/nathelper.html#nathelper.p.nortpproxy_str

On Tue, Nov 26, 2019 at 10:41 AM Sujit Roy <sujitroydhk@gmail.com> wrote:
Hello

Please see below SIP Message

SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP 192.1681.101:5060;branch=z9hG4bK5a61798d7c850d39;rport=5060
From: <sip:summona@ 192.1681.101>;tag=51a0dc1e620de16d
To: <sip:101880171234567@ 192.1681.102>
Call-ID: 6fd9b9d563616c6c15f2d7fa@ 192.1681.101
CSeq: 21701 INVITE
Server: kamailio (5.1.9 (x86_64/linux))
Content-Length: 0

1.  I want to Change the Server Parameter . How to do it ? 


SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 192.1681.101:5060;rport=5060;branch=z9hG4bK5a61798d7c850d39
Record-Route: <sip: 192.1681.102;lr>
From: <sip:summona@ 192.1681.101>;tag=51a0dc1e620de16d
To: <sip:101880171234567 @ 192.1681.102>;tag=as728725b3
Call-ID: 6fd9b9d563616c6c15f2d7fa@ 192.1681.101
CSeq: 21701 INVITE
Server: VOS3000 V2.1.4.0
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Session-Expires: 600;refresher=uas
Contact: <sip:1018801751481417@104.216.39.66:5060>
Content-Type: application/sdp
Require: timer
Content-Length: 289
v=0
o=root 912643161 912643161 IN IP4 192.1681.104
s=VOS3000 V2.1.4.0
c=IN IP4 192.1681.104
t=0 0
m=audio 10784 RTP/AVP 18 101
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:230
a=sendrecv
a=nortpproxy:yes

2. I Want to hide the Contact Parameter and a= nortpproxy:yes ==> How to do it as well ? 

Thanks in advance.

--
Regards
===================
Sujit Roy

_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users