Intelligent formatting of VoIP telephone numbers

• US 8,036,366 B2
• Filed: 08/04/2006
• Issued: 10/11/2011
• Est. Priority Date: 08/04/2006
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Chu, Lon-Chan
• Primary Examiner(s): DEANE JR, WILLIAM J
• Application Number:
  US11/462,540
• Publication Number:
  US 20080043718A1
• Time in Patent Office: 1,894 Days
• Field of Search: 379/220.01, 379/219, 379/355.01, 379/355.05
• US Class Current: 379/220.01
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 7/0075 Details of addressing, directories or routing tables

Abstract

A system and method are disclosed for intelligent formatting of VoIP telephone numbers. The intelligent VoIP formatting system includes a presentation and user interface layer, an E.164 formatting engine, a location routine, and a database of telephone number data which are used to deconstruct input telephone numbers and reconstruct them as E.164 compliant telephone numbers.

Claims

1. A computer implemented method of generating an E.164 compliant telephone number from an input telephone number in a voice over IP system, the method comprising the steps of:

(a) receiving a defined call origin location including at least one of a country code and an area code for an intended geographic origin of a telephone call using the input telephone number;

(b) determining whether the input telephone number includes a direct dialing prefix;

(c) removing the direct dialing prefix if it is determined in said step (b) that the input telephone number includes a direct dialing prefix, removing the direct dialing prefix forming an intermediate number;

(d) adding at least one of an E.164 prefix, a country code and an area code for the call origin location received in said step (a) if an intermediate number is formed in said step (c) to form an E.164 compliant telephone number;

(e) placing a call using the formatted E.164 compliant telephone number; and

(f) examining at least one of the E.164 compliant telephone number and a history of prior stored telephone calls in the event the call placed in said step (e) does not reach a recipient, the examining step (f) carried out for the purpose of identifying an intended telephone number.

2. The computer implemented method of claim 1, further comprising the step (g) of defining one or more defined call origin locations from which the defined call origin location of said step (a) is received, the step of defining one or more defined call origin location comprising the steps of:

(g1) receiving information for each call origin location of the one or more call origin locations, the information for each call origin location including a name, geographic information and, optionally, area code information; and

(g2) storing the information received in said step (g1) for each call origin location.

3. The computer implemented method of claim 2, said step (g2) of storing the information comprising the step of storing the information on a client device capable of placing voice over IP telephone calls.

4. The computer implemented method of claim 2, said step (g1) of receiving information for each call origin location of the one or more call origin locations comprises the step of receiving information for a plurality of call origin locations, each call origin location representing a different geographic area from which a user places voice over IP telephone calls.

5. The computer implemented method of claim 4, said step (g2) of storing the information comprising the step of storing the information on a server with which the user is capable of communicating from computing devices at the different geographic areas from which a user places voice over IP telephone calls.

6. The computer implemented method of claim 1, wherein said step (b) of determining whether the entered telephone number includes a direct dialing prefix comprises the steps of:

(b1) searching a database of international direct dialing prefixes and national direct dialing prefixes; and

(b2) identifying whether an international direct dialing prefix or a national direct dialing prefix from the database searched in said step (b1) matches the direct dialing prefix of the input telephone number.

7. The computer implemented method of claim 6, wherein said step (b1) comprises the step of only searching the database for an international direct dialing prefix and/or a national direct dialing prefix for the defined call origin location received in said step (a).

8. The computer implemented method of claim 6, further comprising the step of periodically updating the database.

9. The computer implemented method of claim 1, further comprising the step (h) of determining whether the input telephone number matches the national length of a telephone number for the call origin location received in said step (a).

10. The computer implemented method of claim 9, further comprising the step (i) of adding at least a country code for the call origin location received in said step (a) to the input telephone number to form an E.164 compliant telephone number if it is determined in said step (h) that the input telephone number matches the national length of a telephone number for the call origin location received in said step (a).

11. The computer implemented method of claim 1, further comprising the step (j) of determining whether a length of the input telephone number is less than a minimum length of a local telephone number from the call origin location received in said step (a), and, if so, placing a voice over IP telephone call using the input telephone number.

12. A computer-readable storage medium having computer-executable instructions for programming a processor to perform a method of generating an E.164 compliant telephone number from an input telephone number in a voice over IP system, the method comprising the steps of:

(a) receiving a defined call origin location including at least one of a country code and an area code for a geographic origin of a telephone call using the input telephone number;

(b) removing a prefix of the input telephone number where the prefix is not included in an E.164 compliant telephone number, removal of said prefix forming an intermediate number;

(c) adding a prefix and/or one or more numbers to the intermediate number formed in said step (b) where the intermediate number formed in said step (b) is not an E.164 compliant telephone number, addition of the prefix and/or one or more numbers forming an E.164 compliant telephone number; and

(d) placing a call using the formatted E.164 compliant telephone number; and

(e) examining at least one of the E.164 compliant telephone number and a history of prior stored telephone calls in the event the call placed in said step (e)does not reach a recipient.

13. The computer-readable storage medium of claim 12, wherein said step (b) of removing a prefix of the input telephone number comprises the step of removing an international direct dialing prefix or removing a national direct dialing prefix.

14. The computer-readable storage medium of claim 12, wherein said step (c) of adding a prefix and/or one or more numbers to the intermediate number comprises the step of adding one or more of an E.164 prefix, a country code, and an area code.

15. The computer-readable storage medium of claim 12, wherein said step (b) of removing a prefix of the input telephone number where the prefix is not included in an E.164 compliant telephone number comprises the steps of:

(b1) searching a database of international direct dialing prefixes and national direct dialing prefixes;

(b2) identifying an international direct dialing prefix or a national direct dialing prefix from the database searched in said step (b1) that matches a prefix of the input telephone number; and

(b3) removing the prefix matching the prefix of the identified country.

16. The computer-readable storage medium of claim 15, wherein said step (b1) comprises the step of only searching the database for an international direct dialing prefix and/or a national direct dialing prefix for the defined call origin location received in said step (a).