[SR-Users] Kamalio call issue

Fri Mar 20 11:20:35 CET 2015

Hello,

When we can change our DNS IP then it works with following :

U 2015/03/20 10:06:06.504009 23.253.110.48:5060 -> 202.157.76.21:64051

ACK
sip:tester2 at 192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48
SIP/2.0.

Call-ID: 143610160aa023568302b9c999b79f45 at 0:0:0:0:0:0:0:0.

CSeq: 2 ACK.

Via: SIP/2.0/UDP
23.253.110.48;branch=z9hG4bK7.601b877c92120368c17b3c0da0802af6.0.

Via: SIP/2.0/UDP
192.168.0.217:5060;rport=63789;received=202.157.76.21;branch=z9hG4bK-353035-
5aa153400d9ce60dfc573738a4b55232.

From: "tester1" <sip:tester1 at 23.253.110.48>;tag=3fdb1d0f.

To: "tester2" <sip:tester2 at 23.253.110.48>;tag=31532119.

Max-Forwards: 69.

Contact: "tester1"
<sip:tester1 at 192.168.0.217:5060;transport=udp;registering_acc=23_253_110_48;
alias=202.157.76.21~63789~1>.

User-Agent: Jitsi2.6.5390Windows 7.

Content-Length: 0.

But when we used another DNS IP (internet) and call then it  showing only
initialize..

If it has firewall issue then it will not work at all DNS IPs. 

I have attached before my config file for kamalio. 

Can you tell me what can be issue that it works at some DNS IP and not at
all?

Thanks 

From: Daniel-Constantin Mierla [mailto:miconda at gmail.com] 
Sent: Friday, March 20, 2015 2:14 AM
To: Yogendra Gupta; 'Kamailio (SER) - Users Mailing List'
Subject: Re: [SR-Users] Kamalio call issue

These are replies to INVITE requests, but if you see them, the INVITE passed
through the server as well.

If you are not aware of a firewall, then perhaps you don't have one unless
is a default installation with it enabled or one on the network.

I suggest you do sip tracing on the client machine to see if the invite
requests leave to the proper IP.

Ultimately can be also a problem caused by a NAT router with ALG, if the
client is behind such device.

Cheers,
Daniel

On 19/03/15 13:50, Yogendra Gupta wrote:

Hello,

When I am calling with other SIP user then I did not see any INVITE . that
have issue with DNS.

If we call with different DNS that is working fine then we see INVITE option
like

U 2015/03/19 12:39:01.744616 117.215.244.16:63380 -> 23.253.110.48:5060

SIP/2.0 180 Ringing.

CSeq: 2 INVITE.

Call-ID: d83c4bc1e75e54df5ebd06b74f9089ef at 0:0:0:0:0:0:0:0.

From: "tester1"  <sip:tester1 at 23.253.110.48>
<sip:tester1 at 23.253.110.48>;tag=ef809ce0.

To:  <sip:tester2 at 23.253.110.48> <sip:tester2 at 23.253.110.48>;tag=23a5eaea.

Via: SIP/2.0/UDP
23.253.110.48;branch=z9hG4bKa1a3.21d8ef51bac2678fc26eca5975ae7b00.0,SIP/2.0/
UDP
192.168.0.217:5060;rport=62554;received=115.252.208.170;branch=z9hG4bK-34393
8-6f1017bcd9e693a4959717c9eabdc26e.

Record-Route:  <sip:23.253.110.48;lr=on;nat=yes>
<sip:23.253.110.48;lr=on;nat=yes>.

Contact: "tester2"
<sip:tester2 at 192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48>
<sip:tester2 at 192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48>
.

User-Agent: Jitsi2.6.5390Windows 7.

Content-Length: 0.

.

U 2015/03/19 12:39:01.744870 23.253.110.48:5060 -> 115.252.208.170:62554

SIP/2.0 180 Ringing.

CSeq: 2 INVITE.

Call-ID: d83c4bc1e75e54df5ebd06b74f9089ef at 0:0:0:0:0:0:0:0.

From: "tester1"  <sip:tester1 at 23.253.110.48>
<sip:tester1 at 23.253.110.48>;tag=ef809ce0.

To:  <sip:tester2 at 23.253.110.48> <sip:tester2 at 23.253.110.48>;tag=23a5eaea.

Via: SIP/2.0/UDP
192.168.0.217:5060;rport=62554;received=115.252.208.170;branch=z9hG4bK-34393
8-6f1017bcd9e693a4959717c9eabdc26e.

Record-Route:  <sip:23.253.110.48;lr=on;nat=yes>
<sip:23.253.110.48;lr=on;nat=yes>.

Contact: "tester2"
<sip:tester2 at 192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48;
alias=117.215.244.16~63380~1>
<sip:tester2 at 192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48;
alias=117.215.244.16~63380~1>.

User-Agent: Jitsi2.6.5390Windows 7.

Content-Length: 0.

Can you tell me what can be issue of firewall dropping?

When I checked at server firewall:

sudo ufw status

Status: inactive

Let me know what can be other issue for it..

Thanks

From: Daniel-Constantin Mierla [mailto:miconda at gmail.com] 
Sent: Thursday, March 19, 2015 5:50 PM
To: Yogendra Gupta; 'Kamailio (SER) - Users Mailing List'
Subject: Re: [SR-Users] Kamalio call issue

Hello,

OPTIONS is not the request for initiating the calls, that is INVITE. You
would need to know SIP a bit in order to be able to understand and configure
Kamailio.

If you don't see any INVITE on kamailo server via ngrep when you call, then
the issue is on client side or there is a firewall dropping it.

Cheers,
Daniel

On 19/03/15 11:39, Yogendra Gupta wrote:

Hello,

Thanks for nice support.

When we call to test2 user and run this command at server

ngrep -d any -qt -W byline "sip" port 5060

then we found following response at server:

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda>  -
http://www.linkedin.com/in/miconda
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - http://www.kamailioworld.com

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - http://www.kamailioworld.com
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