Communications apparatus
A communication network and communication terminal technology, applied in the field of communication devices, can solve the problems of increasing the cost and required complexity of the billing system
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[0053] first embodiment
[0054] Referring to Figure 1, in a telecommunications system (eg British Telecom system), customer premises equipment 1 (eg a telephone or a computer terminal with a modem) is connected to a first public switched telephone network (PSTN) 2 and (through network 2) Connected to the second public switched telephone network 3 . Via the networks 2, 3, the user terminal 1 is connected to a service provider 4 (eg a database host).
[0055] In PSTN2, subscriber terminal 1 is connected to exchange 5, which is connected to tandem office 6 connected to second PSTN3. An external telephone network 7 is accessible from the user terminal 1 via the first or second network 2, 3.
[0056] In Figure 1, straight lines represent physical connections between devices, and curved arrows represent billing flow. Typically, the operator of the first network 2 sends the user a bill for his quarterly, or generally regular, use of the network. The operator of the second networ...
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