[Serusers] To modify the video and audio port together

[szj]

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
>>
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>>
>