exchange dialling tone the initialization block comprises details specifying the source and receptor of the message the identification of the message receptor allowing a distinction to be drawn between a local facsimile terminal fax for example when printing out facsimile messages a remote facsimile terminal for example when sending a facsimile message or else a telephone terminal fe for example for establishing a telephone link the initialization block contains further details for example specifying whether and how many automatic redials are desired and at which time interval they are desired the interpreter program pc i running in the facsimile terminal fax interprets the special control command issued by the personal computer pc in the initialization block and identifies the telephone order subsequently the order is accepted by an order management of the facsimile terminal fax and the communication means ke of the facsimile terminal fax is instructed to establish the link in addition the loudspeaker function in the facsimile terminal fax is switched on consequently acoustic monitoring of the establishment of the link is possible for the pc user however loudspeaker functions of the personal computer or the loudspeaking functions of the telephone terminal fe may also be used when the called subscriber has answered the receiver of the telephone terminal fe is picked up by the pc user and the communication means ke of the facsimile.