The telecommunications infrastructure of a network operator consists of a set of networks
(transmission network, switching network, access network, signaling network, mobile
network, intelligent network, management network), each performing a particular function
towards the provision of the service to the customer. With the evolution towards IP-based
network, the circuit switched network is
(transmission network, switching network, access network, signaling network, mobile
network, intelligent network, management network), each performing a particular function
towards the provision of the service to the customer. With the evolution towards IP-based
network, the circuit switched network is
.......
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