Title:
METHOD FOR ROUTING INTERNATIONAL ROAMING CALLS
Document Type and Number:
WIPO Patent Application WO/2013/055055
Kind Code:
A1
Abstract:
Disclosed is a method for directly setting an ISUP call from an outgoing call network to a visited network when an incoming call terminal, which has subscribed to an international telephone roaming service, is roaming in the visited network. The method for routing international roaming calls according to one aspect of the present invention comprises the steps of: receiving, by a switch of an outgoing call network, a roaming number capable of setting an ISUP path to a switch of a visited network according to a call request signal on an incoming call terminal from an outgoing call terminal located not at a home network but at the outgoing call network after the incoming call terminal, which has subscribed to an international roaming service of the home network, is roaming in the visited network; and setting, by the switch of the outgoing call network, an ISUP call to the switch of the visited network by using the roaming number.
Inventors:
LEE JEONG-KOO (KR)
KANG BYUNG-KEUN (KR)
LEE JEONG-HYEONG (KR)
KANG BYUNG-KEUN (KR)
LEE JEONG-HYEONG (KR)
Application Number:
PCT/KR2012/007922
Publication Date:
April 18, 2013
Filing Date:
September 28, 2012
Export Citation:
Assignee:
KT CORP (KR)
International Classes:
H04W8/02
Foreign References:
| KR20070105126A | 2007-10-30 | |||
| KR20040026339A | 2004-03-31 | |||
| US20060142011A1 | 2006-06-29 |
Attorney, Agent or Firm:
MYUNG MOON IP & LAW FIRM (KR)
특허법인 명문 (KR)
특허법인 명문 (KR)
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Claims: