Communication method for placing phone calls by using a fixed dial plan
First Claim
1. A communication method for placing phone calls by using a fixed dial plan, in which at least one communication apparatus is used to dial a phone number that is sent to a PSTN telecommunication switch, comprising the steps of:
- (1) using said communication apparatus to dial a telephone number following a first dial plan;
(2) converting the dialing number following the first dial plan into an E.164 telephone number;
(3) converting the E.164 telephone number into a dialing number following a second dial plan; and
(4) sending the dialing number following the second dial plan to a telecommunication switch.
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Accused Products
Abstract
A communication method dials phone calls by using fixed numbers and includes the following steps. A phone number is receives. A first processing step is performed to transform the phone number into a first dialing number. A correct PSTN gateway is selected according to the first dialing number. A first detection step is performed to judging whether the first dialing number is matched with a country code of the PSTN gateway. If not matching, a final dialing number is generated by adding an IDD of the PSTN gateway to the first dialing number. Otherwise, a country code is removed from the first dialing number to generate a second dialing number and a final processing step is performed to transform the second dialing number to a final dialing number. Finally, the final dialing number is sent to the PSTN gateway. A communication apparatus for implementing the above method is also disclosed.
24 Citations
13 Claims
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1. A communication method for placing phone calls by using a fixed dial plan, in which at least one communication apparatus is used to dial a phone number that is sent to a PSTN telecommunication switch, comprising the steps of:
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(1) using said communication apparatus to dial a telephone number following a first dial plan;
(2) converting the dialing number following the first dial plan into an E.164 telephone number;
(3) converting the E.164 telephone number into a dialing number following a second dial plan; and
(4) sending the dialing number following the second dial plan to a telecommunication switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification