Method to protect against manipulated charging signaling data in IMS networks In the prior
art CDR tickets are exchanged between devices/functionalities of an IMS system. This can …

(51) Int. Cl. IMS users that Subscribe to AOC services. An S-CSCF in an H04M
II/00(2006.01) IMS network receives a first register message from an IMS H04M …

US8620262B2 - Advice of charging (AoC) services in IMS networks - Google Patents
US8620262B2 - Advice of charging (AoC) services in IMS networks - Google Patents Advice of …

(3GPP), an IP Multimedia Subsystem (IMS) provides a com mon core network having an
access-agnostic network archi tecture for converged networks. Service providers are accept …

IMS networks and methods are disclosed for providing offline charging for a session of an
IMS device that is seam lessly handed over between a home IMS network and a vis ited IMS …

An IMS system including a Home Subscriber Server including data for terminals connecting
to the IMS. The Home Subscriber Server being arranged to transmit a reset message to …

The present invention relates to communication technology, and in particular, to a method,
apparatus and system for sup porting distributed IMS charging. The system for supporting …

In a method of correlating information relating to message in a SIP session, a first SIP
message that includes a first IMS Charging Identifier, ICID, is received. The first SIP …

Primary Examiner–Thai D Hoang (74) Attorney, Agent, or Firm—Perkins Coie LLP (57)
ABSTRACT Managing Security Parameter Information (SPIs) to prevent race condition …

Inventors: Yigang Cai, Naperville, IL (US); Communication networks and methods are
disclosed for Shiyan Hua, Lisle, IL (US) sharing charging information between a home IMS …