[Serusers] Re: To modify the video and audio port together

Klaus Darilion klaus.mailinglists at pernau.at
Thu Mar 3 11:37:45 CET 2005


Hi!

Some time ago, there was a patch on the mailinglist for this extension. 
But it never was included in the official rtpproxy. AFAIK mediaproxy 
supports also video. Nevertheless, it would be great if video support 
would be included in nathelper and rtpproxy.

regards,
klaus

szj wrote:

> Klaus Darilion wrote:
> 
>> take a look at fix_nated_register() from nathelper. This function will 
>> use the received column.
>>
>    Thank you very much for you timely reply!
>    Yes, you are right, I am now browsing the fix_nated_*() functions.
>    What I want to to is to extend the extract_mediaport() to support
> the extraction of the audio and video port from SDP. Of course,
> we had to modify the alter_mediaport(), rtpproxy program and protocol
> between them.:(
>    I wonder who can give some advice on that!
>  
>     Thanks for all of you.
>   Best Regards
> 
>  Sun Zongjun
> 
>> regards,
>> klaus
>>
>>
>> szj wrote:
>>
>>>
>>>  During the testing procedure, I found that when both sip UAs
>>> who are located behind the same NAT cloud want to establish
>>> voice or video connection, there is not neccesary to bridge
>>> them with rtpproxy. Only in situations where one of UA sits
>>> behind NAT or each UA sits behind different NAT clouds, that
>>> need a RTPProxy to bridge their media stream.
>>>  What I mean is SER can determine the use of RTPproxy or not
>>> through the registration of sip UA. In location table, there
>>> are recieved and contact fields. But ser don't fill the
>>> recieved field, I think it is very userful for NAT.
>>>
>>>    Glad to hear your instructions
>>>      Best Regards
>>>
>>> Sun Zongjun
>>>
>>> _______________________________________________
>>> Serusers mailing list
>>> serusers at lists.iptel.org
>>> http://lists.iptel.org/mailman/listinfo/serusers
>>>
>>>
>>
> 
> 




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