Re: How calculate dealy VoIP communication

[capricorn 80 <cool_capricorn80 () hotmail com>]

 Hi Lars!

  I am also looking for this information. As I told you in my previous email that I am running wireshark on both end 
than i guess I can calculate the delay. I am in process of reading RFC3550 but if you give some additional information, 
reference or example how to do it. That will be very nice.

 Thanks alot.

Regards,

Sajid 

> From: lars.ruoff () alcatel-lucent com
> To: wireshark-users () wireshark org
> Date: Mon, 22 Mar 2010 11:29:36 +0100
> Subject: Re: [Wireshark-users] How calculate dealy VoIP communication
>
>
> You can't get it directly.
> Unless you have a capture on both ends and synchronised clocks for both captures. You may then compare send and 
> receive times.
>
> But there's another way:
> Actually, most of the time, RTP endpoints do measure the round-trip delay while in conversation and exchange that 
> information via RTCP.
> So you can watch for RTCP packets in your captures and extract the info from there.
> See RFC 3550. 
>
> Regards,
> Lars Ruoff
>
>
> ________________________________
>
>       From: wireshark-users-bounces () wireshark org [mailto:wireshark-users-bounces () wireshark org] On Behalf Of 
> Salvatore Frandina
>       Sent: dimanche 21 mars 2010 11:07
>       To: wireshark-users () wireshark org
>       Subject: [Wireshark-users] How calculate dealy VoIP communication
>       
>       
>       Hi,
>       
>       I know how to calculate the bandwidth, jitter and loss packets of RTP traffic. How can I estimate the mean 
> delay?
>       
>       Thank
>       -- 
>       _______________________________________
>       Salvatore Frandina
>       website: http://frandinas.altervista.org
>       mail: salvatore.frandina () gmail com
>       
>       _______________________________________
>       
>       
>
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