[Freeswitch-users] Freeswtich as a media proxy between ipv4<=>ipv6 using Polycom HDX8006 SIP UA-s

[MÉSZÁROS Mihály]

Hi Steven et al.

2011-02-25 16:01 keltezéssel, Steven Ayre írta:
>> Is it possible to create ipv6<=>  ipv4 media proxy from FreeSwitch?
>> So i need to mangle SDP to replace ipv6 to ipv4 and vice-versa. (but i use
>> fnacy things like BFCP,FECC(H.224),secondary video)
>>      
> If aleg is on IPv4 and bleg is on IPv6 then FS will allow that and
> it'll handle putting the correct IPs in the SDPs itself. No extra work
> required. A sip profile for each class, and bridge between them in
> dialplan.
>    
It is working but i need extra features like secondary video stream for 
content and Application protocol (H.224 for Far End Camera Control) and 
BFCP for content.

So in B2BUA mode with bridged media the advanced protocols will not work.
If i use FreeSwitch media_bypass mode, so SDP and the media is flowing 
directly then i can't connect ipv4 only with ipv6 only media.

So i need media proxy mode, but i am experiencing that advanced 
features, don't work.
So what i need to replace only ipv6 and ipv4 address in sdp, and connect 
all streams regardless they are UDP or TCP or otherelse to FreeSwitch 
internal media proxy.
I miss application media streams proxy capability etc.
>    
>> Further more I need to know that FreeSwitch can function as a real media
>> proxy?
>>      
> Yes, it does.
>
>    
Ok I am experiencing FS media proxy has limitations.  AFAIK only one 
audio and one video stream, no application protocols.
>> So can it PROXY as MEDIA like  BFCP(TCP!), FECC and secondary video?
>>      
> No support for BFCP.
> FECC isn't supported natively, but should work in proxy_media mode
> where FS doesn't need to know the codec, just forwards the RTP
> straight through.
> AFAIK, secondary video isn't supported. It might work in proxy_media
> but probably not...
>
> However, you might find you have a problem even with proxy_media...
>    
>> m=application
>>      
> I've only ever seen FS handling m=audio and m=video streams. I don't
> know whether it would handle m=application ones.
>
>    
My experience is that it is not handling m=application . :-(

Thank you for your reply!

Thanks,
Misi
> -Steve
>
>
>
> 2011/2/23 MÉSZÁROS Mihály<misi at niif.hu>:
>    
>> Hi,
>>
>> Is it possible to create ipv6<=>  ipv4 media proxy from FreeSwitch?
>> So i need to mangle SDP to replace ipv6 to ipv4 and vice-versa. (but i use
>> fnacy things like BFCP,FECC(H.224),secondary video)
>> Further more I need to know that FreeSwitch can function as a real media
>> proxy?
>> So can it PROXY as MEDIA like  BFCP(TCP!), FECC and secondary video?
>> Can i use more than one stream so more than 1 audio + 1 video stream in a
>> sip call in proxy media mode?
>> For example 1 audio + 2 video stream (people+presentation)
>>
>> Example SDP piece for BFCP, and FECC(H.224):
>>
>> m=application 49158 RTP/SAVP 100
>> a=rtpmap:100 H224/4800
>> a=crypto:1 AES_CM_128_HMAC_SHA1_80
>> inline:lv6Y5eO/RSDDOFNvbFmM0q9tfrt3/ZxXqPJx4Pj5|2^31
>> m=application 0 TCP/BFCP *
>> a=floorctrl:c-s
>> a=setup:actpass
>> a=connection:new
>>
>>
>>
>> Any help highly appreciated!
>>
>> Thanks,
>> Misi
>>
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>>      
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