[OpenSIPS-Users] Why OpenSIPS sends 2 identical SIP INVITEs to a same peer?

[Bogdan-Andrei Iancu]

Hi Rodrigo,

Are you sure you do not hit the lookup(location) twice ? because this is 
what is looks like.

Best regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 19.10.2016 16:04, Rodrigo Pimenta Carvalho wrote:
>
>
> Hi.
>
>
> I can see that OpenSIPS sends 2 identical SIP INVITE to a same peer. 
> (When peer 5000 is called)
>
> I know about it because wireshark shows that a peer is really 
> receiving 2 INVITEs and also the OpenSIPS log shows:
>
>
> Jan 02 17:26:22 colibri-imx6-jfl opensips[427]: new branch at 
> sip:5000 at 192.168.0.104:58782;transport=TCP;ob
> Jan 02 17:26:22 colibri-imx6-jfl opensips[427]: new branch at 
> sip:5000 at 192.168.0.102:50728;transport=TCP;ob
> Jan 02 17:26:22 colibri-imx6-jfl opensips[427]: new branch at 
> sip:5000 at 192.168.28.41:60486;rinstance=aa40e4f9739d3107;transport=TCP
> Jan 02 17:26:22 colibri-imx6-jfl opensips[427]: new branch at 
> sip:5000 at 192.168.0.102:50728;transport=TCP;ob
> Jan 02 17:26:22 colibri-imx6-jfl opensips[427]: new branch at 
> sip:5000 at 192.168.28.41:60486;rinstance=aa40e4f9739d3107;transport=TCP
>
>
> Why such behavior can occur?
>
> Could it cause some problem to my calls?
>
>
> By the way, my location table has:
>
>
> -----------------------------------------------------------------------------------------
>
> Domain:: location table=512 records=4
>  AOR:: 5000
>  Contact:: sip:5000 at 192.168.0.104:58782;transport=TCP;ob Q=
>      Expires:: 133
>      Callid:: 88519814-f2c4-4714-bc9e-2cc64dccab4b
>      Cseq:: 10979
>      User-agent:: n/a
>      State:: CS_SYNC
>      Flags:: 0
>      Cflags::
>      Socket:: tcp:192.168.0.101:5060
>      Methods:: 8063
>      Attr:: in_same_network
>      SIP_instance:: <urn:uuid:00000000-0000-0000-0000-0000f53ec9ed>
>  Contact:: sip:5000 at 192.168.0.102:50728;transport=TCP;ob Q=
>      Expires:: 157
>      Callid:: 80b010decbb14607b7806e3eb9134be1
>      Cseq:: 26275
>      User-agent:: MicroSIP/3.11.0
>      State:: CS_SYNC
>      Flags:: 0
>      Cflags::
>      Socket:: tcp:192.168.0.101:5060
>      Methods:: 8063
>      Attr:: in_same_network
>      SIP_instance:: <urn:uuid:00000000-0000-0000-0000-00000c27160a>
>  Contact:: 
> sip:5000 at 192.168.28.41:60486;rinstance=22f803810dda3822;transport=TCP Q=
>      Expires:: 12
>      Callid:: YjUxM2ZlNGJmYzMxYjYyNGU2MjRiMDhkYjAxZDMyMTI.
>      Cseq:: 2
>      User-agent:: Z 3.3.25608 r25552
>      Received:: sip:131.221.240.204:57203;transport=TCP
>      State:: CS_SYNC
>      Flags:: 0
>      Cflags:: NAT
>      Socket:: tcp:192.168.0.101:5060
>      Methods:: 5951
>      Attr:: in_another_network
> ------------------------------------------------------------------------------------------------
>
>
>
> If there is 3 contacts, I guess I should see just 3 new branch, 
> shouldn't I ?
>
>
> Any hint will be very helpful!
>
>
> Best regards.
>
>
>
> RODRIGO PIMENTA CARVALHO
> Inatel Competence Center
> Software
> Ph: +55 35 3471 9200 RAMAL 979
>
>
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