EP 3132623 A1 20170222 - WI-FI CALLING USING SIP-IMS HANDSET AND EVOLVED PACKET DATA GATEWAY
Title (en)
WI-FI CALLING USING SIP-IMS HANDSET AND EVOLVED PACKET DATA GATEWAY
Title (de)
WI-FI-ANRUFE MIT SIP-IMS-MOBILTEIL UND EVOLVED-PACKET-DATENGATEWAY
Title (fr)
APPEL WI-FI À L'AIDE D'UN COMBINÉ SIP-IMS ET PASSERELLE ÉVOLUÉE DE DONNÉES PAR PAQUETS
Publication
Application
Priority
- US 201462004861 P 20140529
- US 2015033422 W 20150529
Abstract (en)
[origin: CN106576230A] Wi-Fi calling using a mobile device and an evolved packet data gateway (ePDG) is described herein. For example, a mobile device may determine whether any LTE coverage is available, whether data roaming is available, whether a visited public land mobile network (VPLMN) is available, and whether a DNS query to a visited ePDG (VePDG) is successful. The mobile device may connect to the VePDG responsive to a determination that LTE coverage is available, that data roaming is available, that a VPLMN is available, and that the DNS query to the VePDG is successful. Otherwise, the mobile device may connect to a home ePDG (HePDG).
IPC 8 full level
H04L 29/06 (2006.01); H04W 8/02 (2009.01); H04W 36/00 (2009.01); H04W 80/04 (2009.01); H04W 88/06 (2009.01)
CPC (source: EP US)
H04L 65/1016 (2013.01 - EP US); H04L 65/1069 (2013.01 - EP); H04L 65/1095 (2022.05 - EP); H04L 65/1104 (2022.05 - US); H04L 65/80 (2013.01 - EP); H04W 24/10 (2013.01 - US); H04W 36/00226 (2023.05 - EP); H04W 36/14 (2013.01 - US); H04W 36/1446 (2023.05 - EP); H04W 36/24 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
CN 106576230 A 20170419; EP 3132623 A1 20170222; EP 3132623 A4 20171011
DOCDB simple family (application)
CN 201580028191 A 20150529; EP 15800084 A 20150529