[OpenSIPS-Users] OpenSIPS FreeSWITCH TCP support

[Bogdan-Andrei Iancu]

Hi Matthias,

Do you do full TCP from UA to FS? or OpenSIPS converts from TCP (UA 
side) to UDP (FS side) ?

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Summit 2019
   https://www.opensips.org/events/Summit-2019Amsterdam/

On 7/22/19 7:26 PM, Matthias Kneer via Users wrote:
> Hello,
>
> I'm using OpenSIPS as a loadbalancer / failover proxy and mid 
> registrar in AOR mode, also for doing the NAT keepalives, in front of 
> 2 FreeSWITCHes.
>
> While using UDP everything works fine. Since I now want to implement 
> TLS, I first started to test TCP to have the baseline working to go on 
> with TLS afterwards. Unfortunately, while using TCP, none of TCP 
> registered phones receives inbound calls - while outbound calls from 
> these phones to other UDP registered phones work without an issue. The 
> registration seems to work fine and also the information in the 
> userlocation of OpenSIPS properly recognizing the registration over TCP:
> # opensipsctl ul show
> Domain:: location hash_size=512
>         AOR:: 212 at sip.example.org
>                 Contact:: 
> sip:212@[EXTERNAL_PHONE_IP]:40009;transport=TCP;rinstance=ebc7149013d15489 
> Q=
>                         ContactID:: 1156589880790491998
>                         Expires:: 18
>                         Callid:: Y6nJ2r4Iwm6WNL_KHqcLOQ..
>                         Cseq:: 2
>                         User-agent:: Zoiper rv2.9.2
>                         Received:: 
> sip:[EXTERNAL_PHONE_IP]:40009;transport=tcp
>                         State:: CS_SYNC
>                         Flags:: 0
>                         Cflags::
>                         Socket:: tcp:[OPENSIPS_IP]:5060
>                         Methods:: 5951
>
> It looks like FreeSWITCH is not recognizing that the phones are 
> registered through TCP even though the packets seem to contain the 
> required information. Here's a dump of a the registration through TCP 
> taken from the FreeSWITCH: https://pastebin.com/mbMffLK7
>
>
> And here's the output of the active registrations on the FreeSWITCH 
> for the above mentioned phone, which also contains the transport 
> information in the contact header:
>
> Call-ID:        Y6nJ2r4Iwm6WNL_KHqcLOQ..
> User:           212 at sip.example.org
> Contact:        "212 ZoIPer" 
> <sip:212@[OPENSIPS_IP]:5060;ctid=1156589880790491998;fs_path=sip%3A[OPENSIPS_IP]%3Btransport%3Dtcp%3Blr>
> Agent:          Zoiper rv2.9.2
> Status:         Registered(UDP)(unknown) EXP(2019-07-22 18:02:32) 
> EXPSECS(131)
> Ping-Status:    Reachable
> Ping-Time:      0.00
> Host:           freeswitch
> IP:             [OPENSIPS_IP]
> Port:           51540
> Auth-User:      212
> Auth-Realm:     sip.example.org
> MWI-Account:    212 at sip.example.org
>
> Could someone guide me, at which point I do have to handle TCP 
> different from UDP? I'm pretty new to this whole VoIP / SIP topic.
>
> Thanks in advance,
> Matthias
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users