[SR-Users] Not able to replace route_uri in contact header uri

Thu Apr 20 16:09:53 CEST 2017

Thanks for your kind Response Daniel,

Yes as you told with the requirement I have mentioned call will not reach client, I have explained my requirement in detail,

My requirement is to establish a call between 2 SIP clients Alice and Bob which are using 185.122.205.178(Kamailio) as outbound proxy and registered to a SIP SERVER,

I am not able to establish call between Alice and Bob, So I am trying to Replace the Contact header in Register request with Kamailio IP and then I will direct the Invite request to callee client using the data(Username to IP:port tuple) I have stored in Kamailio database.

Please suggest me if you have better Idea than what i am doing

Thanks & Regards

Narayan

________________________________
From: Daniel-Constantin Mierla <miconda at gmail.com>
Sent: Tuesday, April 18, 2017 1:04:38 PM
To: Narayan P; sr-users at lists.sip-router.org
Subject: Re: Not able to replace route_uri in contact header uri

Hello,

to clarify, in the REGISTER you sent and pasted again below, from

Contact: <sip:OTT919620649614 at 125.16.231.74:25841;ob><sip:OTT919620649614 at 125.16.231.74:25841;ob>

you want to have:

Contact: <sip:OTT919620649614 at 185.122.205.178:5070;lr><sip:OTT919620649614 at 185.122.205.178:5070;lr>

If yes, then this doesn't look right at all, then the device cannot receive calls anymore. Maybe you can explain the purpose and then we may be able to offer some hints.

Cheers,
Daniel

REGISTER sip:185.122.206.62 SIP/2.0
Via: SIP/2.0/UDP 125.16.231.74:25841;rport;branch=z9hG4bKPj592750e4-9a06-4662-a55e-a8a71dedb974
Route: <sip:185.122.205.178:5070;lr><sip:185.122.205.178:5070;lr>
Max-Forwards: 70
From: <sip:OTT919620649614 at 185.122.206.62><sip:OTT919620649614 at 185.122.206.62>;tag=35af1666-a2b1-4c6e-a7b6-8675845036e7
To: <sip:OTT919620649614 at 185.122.206.62><sip:OTT919620649614 at 185.122.206.62>
Call-ID: 5bc6558f-1ffc-4990-bc99-d099c4fdcbcb
CSeq: 41801 REGISTER
User-Agent: PJSUA v2.3 Linux-4.4.0.64/x86_64/glibc-2.19
Contact: <sip:OTT919620649614 at 125.16.231.74:25841;ob><sip:OTT919620649614 at 125.16.231.74:25841;ob>
Expires: 300
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
Authorization: Digest username="OTT919620649614", realm="185.122.206.62", nonce="af7780946d2b72ddc5e765a68798e937", uri="sip:185.122.206.62"<sip:185.122.206.62>, response="a4c0614fbc3c72ece619247de5766a4b", algorithm=MD5
Content-Length:  0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 125.16.231.74:25841;rport=25841;branch=z9hG4bKPj592750e4-9a06-4662-a55e-a8a71dedb974;received=125.16.231.74
From: <sip:OTT919620649614 at 185.122.206.62><sip:OTT919620649614 at 185.122.206.62>;tag=35af1666-a2b1-4c6e-a7b6-8675845036e7
Call-ID: 5bc6558f-1ffc-4990-bc99-d099c4fdcbcb
CSeq: 41801 REGISTER
To: <sip:OTT919620649614 at 185.122.206.62><sip:OTT919620649614 at 185.122.206.62>;tag=1492409213989
Expires: 50
Contact: <sip:OTT919620649614 at 125.16.231.74:25841;ob><sip:OTT919620649614 at 125.16.231.74:25841;ob>;expires=50
Content-Length: 0

On 17.04.17 08:38, Narayan P wrote:

Hi Daniel,

I am attaching here my sip trace at client side.Request you to see this.

My client IP in register request is 125.16.231.74 and the server on which kamailio is running is 185.122.205.178.

I want my contact header to be <sip:OTT919620649614 at 185.122.205.178:5070;lr><sip:OTT919620649614 at 185.122.205.178:5070;lr>

I am using avp_subst() function to replace this.But kamailio is not starting.

Please reply if I am in wrong way or have different understanding as I am very new to kamailio.

Thanks,

Narayan

________________________________
From: Narayan P
Sent: Friday, April 14, 2017 12:54:25 PM
To: sr-users at lists.sip-router.org<mailto:sr-users at lists.sip-router.org>
Cc: moconda at gmail.com<mailto:moconda at gmail.com>
Subject: RE: Not able to replace route_uri in contact header uri

Hi Daniel,

Thanks for your response.

I mean to say,
In my register request the route header i.e. route_uri is <sip:185.122.205.178><sip:185.122.205.178> and contact header is 3333 at 172.22.13.41<mailto:3333 at 172.22.13.41>.
I want my contact header to be 3333 at 185.122.205.178<mailto:3333 at 185.122.205.178>.
So how can I replace the contact header's only domain part with route_uri.the user part of the contact header remains same.

Thanks,
Narayan

--
Daniel-Constantin Mierla
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