On Sunday 09 October 2011, Austin Einter wrote:
> Thanks for your kind answer.
>  
> The call flow looks as below
> I have two doubts here
>  
> 1. My UA is just behind the Modem
> [..]

Hi Austin,

maybe the upstream or downstream bandwith of the modem is not sufficient, so 
that packets get dropped. As already mentioned, try to analyse a packet dump 
with wireshark or other tools, to see if the RTP is delivered ok.

Best regards,

Henning

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