the invention relates to a method for establishing a communication link between communication terminals which are associated with a preselected group of communication terminals . according to said method , a start message 1 is captured by a server of a communication link , which is sent by the communication terminal , the preselected group is determined by the server using information transferred in the start message via the communication terminal and is associated with the communication terminal . also , a link message is transferred by the server to the communication terminal . the server captures a link confirmation message which is sent by the communication terminal , whereby the communication link between the communication terminal and additional communication - ready communication terminals of the group , is produced . the invention also relates to a server .