[Serusers] Anyway to steal Media IP/Port from RTPProxy or MediaProxy

[Greger V. Teigre]

Ad case 1, you may have a problem with the routing of the BYE. You just 
have to track where it stops.
As for the problem in inself: To me it looks more like an Asterisk 
question and not a SER question?!
g-)

Hoa Thai Duy wrote:
> Dear Greger & List
>  
> Actually, I want Asterisk to deploy re-INVITE to let the media flow 
> directly between my UAs and ITSPs (neither relay via RTP/MediaProxy 
> and Asterisk RTP).
> Case 1:
> If I forward it to Asterisk and use re-INVITE in sip.conf
> exten => _X.,1,Answer()
> exten => _X.,2,Dial(SIP/Number at ITSP <mailto:SIP/Number at ITSP>)
> exten => _X.,3,Hangup
>  
> Asterisk actually open RTP with UAs and have the c=/m= info because of 
> Answer. But I faced the re-INVITE with call drop-off issue.
> When both parties are talking, if remote phone from ITSP hang up, 
> things are fine. If UA hang up, remote phone is still in talking 
> status, and I see no BYE from Asterisk send to ITSP, even it receive 
> BYE from UA
>  
>  
>  
> Case 2:
> If I forward it to Asterisk and not use re-INVITE in sip.conf
> exten => _X.,1,Answer()
> exten => _X.,2,Dial(SIP/Number at ITSP <mailto:SIP/Number at ITSP>)
> exten => _X.,3,Hangup
>  
> Everything is fine
>  
> Case 3:
> If I forward it to Asterisk and use re-INVITE in sip.conf
>  
> exten => _X.,1,Dial(SIP/Number at ITSP <mailto:SIP/Number at ITSP>)
> exten => _X.,2,Hangup
>  
> Asterisk don't actually open RTP with UAs and don't have the c=/m= 
> info. At that time, c= and m= from UAs to Asterisk always point to 
> RFC1918, and also in Asterisk's memory knowledge.
> If this case, when re-INVITE happen, the re-INVITE to ITSP contain 
> RFC1918 IP, and cause wrong media path.
>  
> Pls. advice
>  
> Brgds
>  
> Hoa
>  
>  
>
> ------------------------------------------------------------------------
> *From:* Greger V. Teigre [mailto:greger at teigre.com]
> *Sent:* Thursday, June 22, 2006 7:02 PM
> *To:* Hoa Thai Duy
> *Cc:* serusers at iptel.org
> *Subject:* Re: [Serusers] Anyway to steal Media IP/Port from RTPProxy 
> or MediaProxy
>
> I would think you are better off forwarding the INVITE to Asterisk?!
> g-)
>
> Hoa Thai Duy wrote:
>>
>> Hi List
>>
>> I want to get to c= and m= value after use_media_proxy or 
>> force_rtp_proxy (after real RTP flow between UA and media/rtpproxy)
>>
>> I want this in order to steal this pair of information, and bypass 
>> the RTPProxy/MediaProxy and use this information for UA to talk with 
>> other application server (eg. Asterisk)
>>
>> Pls. help
>>
>> Brgds
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Serusers mailing list
>> Serusers at lists.iptel.org
>> http://lists.iptel.org/mailman/listinfo/serusers
>>   
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