[OpenSIPS-Users] Topology hiding - B2B_LOGIC

[Ovidiu Sas]

In the source tree, there are some examples on how to engage rtpproxy
(using nathelper module):
see "modules/nathelper/examples/alg.cfg".
You need to run opensips in proxy mode (this is the server that will
control the rtpproxy) on one server and on a separate server you need
to tun opensips in b2b mode.  You need to separate servers.
Hope this heps.

Regards,
Ovidiu Sas

On Wed, Feb 9, 2011 at 7:26 PM, Kamen Petrov <kamen.petrov at gmail.com> wrote:
> Hi Ovidiu,
>
> With that scenario, when exactly should I call rtpproxy_offer/answer/engage
> ?
> Is it on the b2b:
> local_route {
>    if (is_method("INVITE")) {
>      engage_rtp_proxy();
>    }
> }
>
> Do I need anything else rtp related anywhere ?
> The SIP goes ok with the scenario but the RTP does not and the audio is
> missing.
>
> Also, do I need anything special to enable the DTMF relay with the top
> hiding ?
>
> Thanks in advance.
> --------------------------------------------
> Kamen Petrov
>
>
> On 6 February 2011 18:08, Ovidiu Sas <osas at voipembedded.com> wrote:
>>
>> For now, best thing to do is to separate functionality:
>>  - one server doing topology hiding;
>>  - one server doing routing, accounting, rtp proxy, etc.
>>
>>
>> Regards,
>> Ovidiu Sas
>>
>> On Sun, Feb 6, 2011 at 9:23 AM, Maciej Bylica <mbsip at gazeta.pl> wrote:
>> > Hi,
>> >
>> >> I am running Opensips 1.6.3 and trying to do topology hiding.
>> >> This is my scenario:    Operator_1 ------ > my Opensips ------>
>> >> Operator_2
>> >> The goal is not to convey any information of Operator_2 to Operator_1
>> >> like Contact, User-Agent headers and so on and to do rtp proxying.
>> >> For rtp proxying i've installed rtpproxy and it works fine.
>> >> But still the question is about signalization and SDP (o= part)
>> >> I ran through a few posts and found out that the answer is B2B
>> >> functionality here - so B2B_LOGIC.
>> >>
>> >> Are there any other wayouts or this is the only way i may follow.
>> >
>> > One more question.
>> > Should I place b2bua separately or could i combine that functionality
>> > with my current Opensips installation?
>> > I am asking because as i understand there might be some problems with
>> > proper call accounting (no radius is used in my case).
>> > If positive then my scenario will look like following:
>> > Operator_1 ------ > my Opensips (billing) -- Opensips b2bua (top
>> > hiding) -- OS RTP Proxy ------> Operator_2.
>> > or it is wrong assumption.
>> >
>> > Thanks,
>> > Maciej.
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users at lists.opensips.org
>> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >
>>
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