Method and apparatus for indirectly assessing a status of an active entity
R Biermayr, E Hauenstein, D Wiebe, T Nagel - US Patent 9,501,371, 2016 - Google Patents
A method and system permit a backup entity of a redundant apparatus of a communication
system that shares control of hardware resources or other network resources with an active …
system that shares control of hardware resources or other network resources with an active …
Methods and systems for managing multiple registration and incoming call routing for mobile user equipment in wireless/IMS networks
S Hua - US Patent App. 11/153,081, 2006 - Google Patents
A summary of one or more aspects of the invention is now presented to facilitate a basic
understanding thereof, wherein this summary is not an extensive overview of the invention …
understanding thereof, wherein this summary is not an extensive overview of the invention …
System and method of user-directed dynamic domain selection
RW Purnadi, MK Islam - US Patent 9,055,517, 2015 - Google Patents
US9055517B2 - System and method of user-directed dynamic domain selection - Google
Patents US9055517B2 - System and method of user-directed dynamic domain selection …
Patents US9055517B2 - System and method of user-directed dynamic domain selection …
Failure recovery in an ip multimedia subsystem network
MCB Vergara, H Przybysz, T Forsman… - US Patent App. 12 …, 2009 - Google Patents
A method and apparatus for facilitating recovery from the failure of a Serving Call Session
Control Function (S-CSCF) within an IP Multimedia Subsystem (IMS) network. A Proxy Call …
Control Function (S-CSCF) within an IP Multimedia Subsystem (IMS) network. A Proxy Call …
Ims reliability mechanisms
JMM Torres, MAM de la Torre… - US Patent App. 11 …, 2008 - Google Patents
(57) ABSTRACT A method and information processing system provide reli ability in an IP
multimedia subsystem network. The method includes monitoring a S-CSCF (210) for its …
multimedia subsystem network. The method includes monitoring a S-CSCF (210) for its …
Loss of signalling bearer transport
DC Zamora, SF Alonso, JJP Balbás, S Terrill - US Patent 9,635,062, 2017 - Google Patents
Being aware of a loss of signalling bearer transport through an IP Connectivity Access
Network is an important issue. Therefore, the present invention relies on amending the …
Network is an important issue. Therefore, the present invention relies on amending the …
Methods and apparatuses for facilitating P-CSCF restoration when a P-CSCF failure has occurred
A Kunz, G Punz, G Velev, T Tamura - US Patent 10,148,487, 2018 - Google Patents
A method of facilitating P-CSCF restoration when a P-CSCF failure has occurred is
disclosed. The method comprises a Proxy Call Session Control Function,'P-CSCF'receiving …
disclosed. The method comprises a Proxy Call Session Control Function,'P-CSCF'receiving …
Method, system, and network element for service processing after data of network element is invalid or network element fails
Q Du, B Wei, X Wang, L Wang, S Shi, P Zhao… - US Patent …, 2017 - Google Patents
A method, a system, and a network element for service processing after data of a network
element is invalid or a network element fails are provided. When the service network …
element is invalid or a network element fails are provided. When the service network …
Failure recovery in an IP multimedia subsystem network
H Przybysz, T Forsman, L Lövsén, G Blanco… - US Patent …, 2013 - Google Patents
A method is provided for facilitating recovery from the failure of a P-CSCF within an IP
multimedia Subsystem network. A gateway, such as a GGSN, monitors signals arriving at the …
multimedia Subsystem network. A gateway, such as a GGSN, monitors signals arriving at the …
IMS reregistration method and system therefor
A method and system in which upon occurrence of a P-CSCF failure, a network sends an
IMS reregistration request message to a UE. An S-CSCF or an AS monitors a P-CSCF to …
IMS reregistration request message to a UE. An S-CSCF or an AS monitors a P-CSCF to …