["Gerry Brown" <gbrown@xxxxxxxxxxxxxxxx>]

>what does mean column of 'Marker" in windows "Wireshark:RTP Stream
>Analysis"??

>From RFC 3550
  marker (M): 1 bit
      The interpretation of the marker is defined by a profile.  It is
      intended to allow significant events such as frame boundaries to
      be marked in the packet stream.  A profile MAY define additional
      marker bits or specify that there is no marker bit by changing the
      number of bits in the payload type field (see Section 5.3).