El Lunes, 15 de Diciembre de 2008, chandan kumar escribió:
> Hi ,
>  
> Iam testing IP phone  which supports video & Audio.Iam facing an issue like
> .Iam testing on 2 DSL lines . So End users are on different NAT's. I have
> registered both the users to Public SIP servers( freel available servers
> for IP calls , using SIPgate).Registration happens.I made call ,call
> connects . But there is only Audio & some times no audio & video. 
> with in India working , But calls from say UK to India are having issues.
>  
> issues are:
>  
> only Audio: from the ethereal captures i can see only Audio Packets
> flowing.. 
> Video freezes:From the captures i can see end points are sending packets to
> router WANIP.Iam not sure whether the packets are reaching the endpoint.How
> can i check this issue. Are the packets blocked by the router.?Iam using
> D-link & Linksys. 
> For the above issues what could be the possible reason.
>  
> Need clear understanding of STUN in media flow. Does STUN comes in to
> picture for RTP flow. How should be the STUN client & STUN server
> behavoiur? Is there any relation between STUN & RTP? 
> Please could any one give brief clarification ,thats enough for me.

Again: This is not the appropiate list for such a question.



-- 
Iñaki Baz Castillo

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