| 摘要 |
A method for a service provider to provide telephone service between a first telephone and a second telephone includes connecting to tHe first telephone, receiving a request from the first telephone to make a call to the second telephone using a VoIP number, mapping the VoIP number to a PSTN number, determining a modem bank local to the second telephone, connecting to the modem bank, instructing the modem bank to connect to the second telephone using the PSTN numbers and routing the call from the first telephone through the modem bank to the second telephone.
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