The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 12, 2018

Filed:

Jan. 05, 2010
Applicants:

Si-nam Woo, Hwaseong-si, KR;

Hyun-a Kim, Suwon-si, KR;

Pyung-bin Lim, Suwon-si, KR;

Sang-ii Choi, Suwon-si, KR;

Inventors:

Si-Nam Woo, Hwaseong-si, KR;

Hyun-A Kim, Suwon-si, KR;

Pyung-Bin Lim, Suwon-si, KR;

Sang-II Choi, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/66 (2006.01); H04L 29/06 (2006.01); H04L 12/18 (2006.01);
U.S. Cl.
CPC ...
H04L 65/40 (2013.01); H04L 12/1836 (2013.01);
Abstract

A method and apparatus for transmitting a groupcast to support a voice paging service in a VoIP system are provided. In the method, a voice paging message is received from a voice paging transmitting terminal and one or more voice paging messages are reproduced from the received voice paging message. A group table is used to change the destination address and port of each of the reproduced voice paging messages into the IP address and port of each of one or more voice paging receiving terminals. Each of the reproduced voice paging messages is unicast on the basis of the changed IP address and port.


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