[SR-Users] Kamailio IMS_QOS

[Ivailo Dobrev]

Yes you send both direction media information to the PCRF but when reply 
is received in precondition state.

On 04/23/2016 12:03 AM, José Seabra wrote:
> Hello Ivailo and Franz,
>
> Thank you for your clarifications.
>
> Well sending an AAR when receive a reply makes all sense, but ims_qos 
> must send the SDP information from the Initial Invite and also from 
> 183 ringing or 200Ok,  Am I correct?
>
> Because PCRF needs to know the session parameters from Initial Initial 
> INVITE and the reply to it.
>
> The PCRF is a proprietary solution.
>
> Thank you
> BR
> José Seabra
>
>
> 2016-04-22 21:54 GMT+01:00 Ivailo Dobrev <ivailod at telera.eu 
> <mailto:ivailod at telera.eu>>:
>
>     Hi Franz,
>
>     There no real OS PCRF. Yota/Telexir use to had some free VM image
>     that is OK for test. You can search about FreePCRF. It is a little
>     tricky to configure it but ... I made for my tests a really dummy
>     one based on FreeDIAMETER. Generally speaking PCRF is the "brain"
>     of the network and you should understand and design things well
>     there. I have experience also w/ commercial PCRFs and there is no
>     real answer yes this is a right way of making something.
>
>     Cheers,
>
>     Ivo
>
>
>     On 04/22/2016 11:09 PM, Franz Edler wrote:
>>
>>     Hi José,
>>
>>     in principle it is possible to send an AAR after receiving the
>>     request. In this case the Service-Info-Status AVP is set to
>>     PRELIMINARY SERVICE INFORMATION.
>>
>>     More efficient is it to wait until SDP answer is received and
>>     then the Service-Info-Status AVP is set to FINAL_SERVICE_INFORMATION.
>>
>>     I don’t know if both methods are covered in ims_qos module.
>>
>>     BTW: which PCRF are you using? Is there some open source PCRF
>>     available?
>>
>>     BR
>>
>>     Franz
>>
>>     *From:*sr-users [mailto:sr-users-bounces at lists.sip-router.org]
>>     *On Behalf Of *José Seabra
>>     *Sent:* Friday, April 22, 2016 3:58 PM
>>     *To:* Kamailio (SER) - Users Mailing List
>>     <sr-users at lists.sip-router.org>
>>     <mailto:sr-users at lists.sip-router.org>
>>     *Subject:* [SR-Users] Kamailio IMS_QOS
>>
>>     Hello There,
>>
>>     I'm trying using the ims_qos module with PCRF for QOS, but I'm
>>     facing some issues.
>>
>>     When kamailio receives an initial invite (originator), it will
>>     execute the function - "Rx_AAR("ORIG_SESSION_AAR","orig","",-1)",
>>     but the PCRF is not contacted and i see the following messages:
>>
>>      5(12153) DEBUG: <script>: Diameter: Orig authorizing media via Rx
>>      5(12153) DEBUG: ims_qos [mod.c:609]: w_rx_aar(): Looking for
>>     route block [ORIG_SESSION_AAR]
>>      5(12153) DEBUG: ims_qos [mod.c:621]: w_rx_aar(): Rx AAR called
>>      5(12153) DEBUG: ims_qos [mod.c:1345]: create_return_code():
>>     Creating return code of [-2] for aar_return_code
>>      5(12153) DEBUG: ims_qos [mod.c:1354]: create_return_code():
>>     created AVP successfully : [aar_return_code]
>>      5(12153) DEBUG: ims_qos [mod.c:627]: w_rx_aar(): Can't do AAR
>>     for call session in request.
>>
>>     Why kamailio says  that I  Can't do AAR for call session in
>>     request?  I have looked into source code and I found that the
>>     condition that is blocking the communication with PCRF is:
>>
>>
>>
>>
>>
>>     //We don't ever do AAR on request for calling scenario...
>>         if (msg->first_line.type != SIP_REPLY) {
>>             LM_DBG("Can't do AAR for call session in request\n");
>>             return result;
>>         }
>>
>>     Anyone can help me understand why it is happening? why it can't
>>     proceed if isn't a reply?
>>
>>     Thank you for your support
>>
>>     BR
>>
>>     -- 
>>
>>     José Seabra
>>
>>
>>
>>     _______________________________________________
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>
>
>     _______________________________________________
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>
>
>
>
> -- 
> Cumprimentos
> José Seabra
>
>
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