HUT Comms.
Lab, Timo O. Korhonen
41
Future trends
nPSTN used to transfer more and more data traffic
nuser PSTN rates increase up to several Mb/s
nAlso data networks (as Frame Relay) will be used for voice and
there is a strong tendency to put everything over IP
nThe fax service in PSTN will diminish and the respective messages
are transmitted by e-mail (that is transferred via
a packet networks (usually by TCP/IP))
nInter(net)working between networks increases
nTraditional voice service in PSTN transforms using packets and
moves to Internet
nPLMNs and especially (RF)-LANs develop very fast