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.
Cheers
chandan.
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