The invention relates to a system to be used for setting up a communication connection between a number of communication devices across a communication network. The system comprises a similar number of identification means in which the same unique communication identifier is embedded; the communication identifier is unique on the communication network on which the communication connection is to be set up. The invention also relates to a method for a first communication device to set up a communication connection to a second communication device across a communication network and to a computer readable medium for performing the method.