[VOIPSEC] How QOS of VoIP call is measured

[Yusuf Mayet]

Hi,

SIP and H323 use RTP as the Transport.  RTP is usually acompanied by
RTCP.  RTCP gives you things like jittter, delay, packet loss.

On Nov 14, 2007 1:36 PM, Bincy K. Philip <bincy.philip at nestgroup.net> wrote:
>
>
>
> Hello ,
>
> I need to know QOS measurement details of VoIP calls.
> For meauring QOS of a VoIP call using SIP or H.323, any additional protocol support have to add in the application.
> I mean, how the QOS measurement tools works and gives the QOS measured value.
> I got familiar with free tools like WinEyeQ  and VQmanager(only for SIP).In the same setup different applications/softphones gave different values.How it works?
>
>
> Thanks & Regards
> Bincy K Philip
>
>
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-- 

thanks,
Yusuf