In a telecommunication network a plurality of transmitting and receiving stations are provided at randomly distributed locations. Routing elements are provided for routing of calls between stations in the network utilizing other stations in the network for relaying of such calls where necessary. Each station incorporates a call routing control unit acting to select a further station to which a call is to be transmitted for the purpose of relaying the call and comprising a memory for compiling, for a plurality of possible destination stations and from information received from further stations within the network within range of the transmitting station, information on possible further stations which may be suitable for relaying calls to the destination stations.