The invention concerns a method of setting up a call-back (305, 315) to a caller (32) in a packet-based
telecommunications network, and a terminal and a
media server (31) to execute this method. The call-back (305, 315) is initiated by a user (30) receiving a media
stream (311, 312, 316). The user (30) sets up a packet-based connection to a
media server (31) and receives the media
stream (311, 312, 316) from the
media server (31). After choosing by the user (30) to call back the caller (32), the media
server (31) generates a cookie with data defining a state of the media
stream (311, 312, 316) and sends the cookie to the user (30). The user (30) initiates the call-back (305, 315) to the caller (32) independently of the media
server (31). After termination of the call-back (305, 315), the data defining the state of the media stream (311, 312, 316) are sent to the media
server (31) or an associated media server and are used to resume the transmission of the media stream (311, 312, 316) to the user (30) from a state following the state defined by the data.