[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hi,

Not sure how easy that would be, if at all. I’m too long out the VoIP domain to know what’s available on this right now.

Regards,

Jaap

On 19 Dec 2023, at 06:14, Mahesh V <maheshvenkateshwaran@xxxxxxxxx> wrote:

Hi

Thanks for the response.

Is there anyway that we can measure call statistics even for the encrypted traffic without using any server API?

thanks

On Sun, Dec 17, 2023 at 3:16 AM Jaap Keuter <jaap.keuter@xxxxxxxxx> wrote:

Hi,

What you are probably looking at is the encrypted form of RTCP, as defined in RFC 3711.

Therefor the first part of the packet looks okay, while the data following the SSRC is undissectable, because encrypted.

To be able to decrypt this the key and negotiated transforms would be needed. They are usually not available.

And even if they were, Wireshark currently is not able to decrypt this.

On 16 Dec 2023, at 11:05, Mahesh V <maheshvenkateshwaran@xxxxxxxxx> wrote:

Hi Folks

I was trying to capture RTCP packets from a Microsoft Teams call

to decode the sender and receiver reports to calculate MOScore.

(Using D/J/PL data).

However, I find that my wireshark is unable to decode these packets.

(please see attached rtcp.pcapng)

However, wireshark was able to decode packet correctly

from a pcap file from here https://www.wireshark.org/lists/wireshark-users/200705/msg00166.html

any idea whats going on?

thanks in advance

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