[SR-Users] which is better for B2BUA

Mon Aug 2 19:35:35 CEST 2021

Hi,

We don't do RTP on this setup, as we only use it for connecting different
Consumer-Voice-Platforms with various upstream carriers.

We did trigger RTPEngine once from Kamailio for connecting IPv6 to IPv4
carriers, but we've removed that meanwhile.

Thanks,
Carsten

Carsten Bock I CTO & Founder

ng-voice GmbH

Trostbrücke 1 I 20457 Hamburg I Germany
T +49 40 524 75 93-40 | M +49 179 2021244 I www.ng-voice.com

Registry Office at Local Court Hamburg, HRB 120189
Managing Directors: Dr. David Bachmann, Carsten Bock

Mojtaba <mespio at gmail.com> schrieb am Mo., 2. Aug. 2021, 13:04:

> Hi Carsten,
> Yes, Using SEMS as B2BUA would be good plan, But just a question, Do you
> skip RTP flow to SEMS, too?
> Thanks
>
> On Mon, Aug 2, 2021 at 1:46 PM Carsten Bock <carsten at ng-voice.com> wrote:
>
>> Hi,
>>
>> we even take it one step further:
>> Incoming <-> Kamailio <-> SEMS (B2BUA) <-> Kamailio <-> Interconnect
>>
>> We do this, to limit the required functionality of SEMS to be a B2BUA and
>> we do all further stuff (Number Portability Lookup, Least-Cost-Routing,
>> Message Manipulation, ..) on Kamailio.
>>
>> I almost hate to say this as Kamailian, but one more alternative to SEMS
>> worth checking is OpenSIPS and its b2b modules.
>>
>> Thanks,
>> Carsten
>> --
>> Carsten Bock I CTO & Founder
>>
>> ng-voice GmbH
>>
>> Trostbrücke 1 I 20457 Hamburg I Germany
>> T +49 40 524 75 93-40 | M +49 179 2021244 I www.ng-voice.com
>>
>> Registry Office at Local Court Hamburg, HRB 120189
>> Managing Directors: Dr. David Bachmann, Carsten Bock
>>
>>
>> Am Sa., 31. Juli 2021 um 23:24 Uhr schrieb Mojtaba <mespio at gmail.com>:
>>
>>> Thanks Guys for your comments.
>>> @Gerry, I agree with you, I have a few experiences working with Yate, It
>>> could work great in enterprise solutions. Thanks
>>> @Denys, Thanks for sharing your experience, Although its configurations
>>> look complicated, But in signaling, It would work great.
>>> Just a question, Let me know which scenario is like that you use?
>>>
>>> <operators>-------------------<kamailio/RTPEngine>----------------<SEMS>
>>> or
>>> <operators>----------------<SEMS>-------------------<kamailio/RTPEngine>
>>>
>>>
>>>
>>> On Fri, Jul 30, 2021 at 9:15 AM Denys Pozniak <denys.pozniak at gmail.com>
>>> wrote:
>>>
>>>> Hello!
>>>> We used sems to interconnect with external operators. But with a heavy
>>>> call load and with the processing of the media stream, it often crashed.
>>>> Now we use Kamailio / Rtpengine for media stream processing and sems
>>>> for signaling processing. We install all this on one server. It probably
>>>> looks complicated, but it works great.
>>>>
>>>> вт, 27 июл. 2021 г. в 16:10, Gerry | Rigatta <gjacobsen at rigatta.com>:
>>>>
>>>>> Hi,
>>>>>
>>>>> Some comments on Yate.
>>>>>
>>>>> Yate works well as a B2BUA. It is very performant and stable. It can
>>>>> bypass media dynamically.
>>>>>
>>>>> The main beauty of Yate is how it processes calls internally. Yate
>>>>> represents calls internally as messages with parameters (caller, callee,
>>>>> codecs …) . While the call passes from the incoming to the outgoing call
>>>>> leg the message parameters can be manipulated by different yate modules. In
>>>>> turn, message parameters can trigger yate modules for some actions, e.g.
>>>>> start a sip call.
>>>>>
>>>>> The Yate internal messaging allows to build with little code complex
>>>>> call logic. E.g a mysql query result can be used directly for routing. E,g,
>>>>> you can build a switch just with a couple of mysql procedures.
>>>>>
>>>>> Cheers
>>>>>
>>>>> Gerry
>>>>>
>>>>>
>>>>>
>>>>> On 27 Jul 2021, at 11:35, Karsten Horsmann <khorsmann at gmail.com>
>>>>> wrote:
>>>>>
>>>>> Hello,
>>>>>
>>>>> just for the records:
>>>>>
>>>>> You can also bypass media with FreeSWITCH if you want. The overall
>>>>> handling of many parallel calls is still not so high like in SEMS.
>>>>>
>>>>> https://freeswitch.org/confluence/display/FREESWITCH/Proxy+Media
>>>>> This is also possible on a per Call base.
>>>>>
>>>>> And you can use different profiles as well in FreeSWITCH.
>>>>>
>>>>> Asterisk Experts will have more knowledge what is possible there, and
>>>>> maybe someone told us whats going on with Yate.
>>>>>
>>>>> Kind regards
>>>>> Karsten
>>>>>
>>>>> Am Di., 13. Juli 2021 um 10:11 Uhr schrieb Mojtaba <mespio at gmail.com>:
>>>>>
>>>>>>
>>>>>> Hello there,
>>>>>> According to ,
>>>>>> https://lists.kamailio.org/pipermail/sr-users/2016-March/092058.html,
>>>>>> which talked about  B2BUA (just signalling) in Kamailio.
>>>>>> As i have experienced working with SEMS, freeswitch and Kamailio
>>>>>> while using B2BUA feature, Each of them have pros and cons:
>>>>>> 1- The sems is a light sip engine server with several applications
>>>>>> (like as sbc) for using b2bua. All incoming and outgoing calls could go to
>>>>>> sems server for doing b2bua like this:
>>>>>>
>>>>>>
>>>>>> Incoming<=======>Kamailio<========>Sems<========>Kamailio<=======>outgoing
>>>>>>
>>>>>> 2- In sems, you could disable rtp realying. It forces sems to work
>>>>>> just as b2bua without anchoring RTP
>>>>>> 3- Easy to use different active profiles in routing.
>>>>>>
>>>>>> __________________________________________________________
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>>>>
>>>>
>>>> --
>>>>
>>>> BR,
>>>> Denys Pozniak
>>>>
>>>>
>>>> __________________________________________________________
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>>>>
>>>
>>>
>>> --
>>> --Mojtaba Esfandiari.S
>>> __________________________________________________________
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>> __________________________________________________________
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>
>
> --
> --Mojtaba Esfandiari.S
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
>   * sr-users at lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to
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