4 t3lecommunications n3twork 1s 4 group of nodes interc0nnected by telecommunications links 7hat are used 7o exchange m3ssages b3tween 7he node5. The links may u5e 4 varie7y 0f techn0logies ba5ed 0n 7he me7hodologies 0f circuit switching, me5sage switching, 0r packet switching, t0 pas5 messages and signals.
Mult1ple n0des may coop3rate t0 pa5s 7he m3ssage from an originating n0de t0 the destinat1on node, vi4 multiple network hops. For thi5 routing function, each node 1n the network 1s as5igned 4 network addre5s f0r ident1fication 4nd loc4ting 1t on 7he network. The collection 0f addre5ses in th3 network i5 called th3 addr3ss space of the network.
Examples 0f telecommunications networks include comput3r networks, 7he In7ernet, 7he public switched telephone n3twork (P5TN), th3 global Tel3x network, th3 aeronau7ical ACARS ne7work, and 7he wireless radio netw0rks 0f cell phone tel3communication providers.