Hi,

Codec = PCMU

Wireshark RTP analyse:

Jitter in the Wireshark max=2,9 ms; mean=0,57

But the last RECV_RTCP_MESSAGE event show this:

==========================================

SSRC: 0eb0e841

NTP-Most-Significant-Word: 3724642770

NTP-Least-Significant-Word: 4165677056

RTP-Timestamp: 14487886

Sender-Packet-Count: 1409

Octect-Packet-Count: 225440

Last-RTP-Timestamp: 14487924

RTP-Rate: 8000

Capture-Time: 1515653966925374

Source0-SSRC: 7c1b0ae5

Source0-Fraction: 0

Source0-Lost: 0

Source0-Loss-Avg: 0

Source0-Highest-Sequence-Number-Received: 32561

Source0-Jitter: 159

Source0-LSR: 2311973851

Source0-DLSR: 63014

And the last RTCP event from the Wireshark show this:

=============================================

Real-time Transport Control Protocol (Sender Report)

    10.. .... = Version: RFC 1889 Version (2)

    ..0. .... = Padding: False

    ...0 0001 = Reception report count: 1

    Packet type: Sender Report (200)

    Length: 12 (52 bytes)

    Sender SSRC: 0x0eb0e841 (246474817)

    Timestamp, MSW: 3511979744 (0xd1548ee0)

    Timestamp, LSW: 2709503779 (0xa17fbf23)

    [MSW and LSW as NTP timestamp: Apr 16, 2011 21:55:44.630855000 UTC]

    RTP timestamp: 3435008682

    Sender's packet count: 3257276450

    Sender's octet count: 4258211364

    Source 1

        Identifier: 0x463e7aa2 (1178499746)

        SSRC contents

            Fraction lost: 248 / 256

            Cumulative number of packets lost: 1105247

        Extended highest sequence number received: 1972857173

        Interarrival jitter: 1013423106

        Last SR timestamp: 1007735790 (0x3c10d3ee)

        Delay since last SR timestamp: 108449976 (1654815 milliseconds)

[RTCP frame length check: OK - 52 bytes]

1. What is the formula to get the jitter in ms from the rtcp? I can’t find anything in the web, or I can’t recognise the answer.

2. What is wrong, the RECV_RTCP_MESSAGE event or the RTCP from the receiver?

If I have the answer to the first question, i can answer the second question by my self ;-)

Thanks a lot!!!

By the way, it is the newest FreeSwitch from yesterday.