Establishing a Multimedia Communications Session
H Przybysz, D Castellanos - US Patent App. 12/738,776, 2010 - Google Patents
BACKGROUND 0002. The IP Multimedia Subsystem (IMS) is the technol ogy defined by the
Third Generation Partnership Project (3GPP) to provide IP Multimedia services over mobile …
Third Generation Partnership Project (3GPP) to provide IP Multimedia services over mobile …
Telephony endpoint routing in an ip multimedia subsystem
JJ Arauz-Rosado - US Patent App. 12/440,989, 2011 - Google Patents
BACKGROUND 0002 The IP multimedia core network subsystem, here inafter IMS, enables
operators to offer their subscribers mul timedia services based on, and built upon, Internet …
operators to offer their subscribers mul timedia services based on, and built upon, Internet …
Control for the interface for sending an SIP reply message
T Froment, C Lebel - US Patent App. 12/289,738, 2009 - Google Patents
0001. This invention relates to signaling enabling the establishment of multimedia sessions
on a data communica tion network. More particularly, it pertains to the SIP (Session Invitation …
on a data communica tion network. More particularly, it pertains to the SIP (Session Invitation …
Enhanced registration messages in internet protocol multimedia subsystems
V Narkar, N Ranjan - US Patent 8,537,797, 2013 - Google Patents
BACKGROUND Internet Protocol Multimedia Subsystems (“IMS) is an architecture
framework for delivering Internet Protocol (“IP) multimedia to mobile users, such as users of …
framework for delivering Internet Protocol (“IP) multimedia to mobile users, such as users of …
Signaling of Early Media Capabilities in IMS Terminals
S Runeson, SCG Andersson, P Hedman… - US Patent App. 12 …, 2008 - Google Patents
BACKGROUND 0003. The IP multimedia subsystem (IMS) was developed by the 3rd-
Generation Partnership Project (3GPP) to provide a common standardized architecture and …
Generation Partnership Project (3GPP) to provide a common standardized architecture and …
Failure recovery in an ip multimedia subsystem network
MCB Vergara, H Przybysz, T Forsman… - US Patent App. 12 …, 2009 - Google Patents
BACKGROUND 0003 IP Multimedia services provide a dynamic combi nation of Voice,
video, messaging, data, etc. within the same session. By growing the number of basic …
video, messaging, data, etc. within the same session. By growing the number of basic …
Optimized Signaling Protocol, Including Session Initiation Protocol (SIP), in a Communications Environment
A Bencheikh - US Patent App. 11/773,387, 2009 - Google Patents
BACKGROUND 0001. This invention relates generally to communications systems, and in
particular to optimizing signaling communi cations between signaling network entities in a …
particular to optimizing signaling communi cations between signaling network entities in a …
Subscriber access authorization
A Leinonen, K Tammi, S Phan-Anh - US Patent App. 11/716,445, 2008 - Google Patents
SUMMARY 0005 According to a first aspect of the invention there is provided a method in an
internet protocol multimedia Sub system (IMS) interacting with session initiation protocol …
internet protocol multimedia Sub system (IMS) interacting with session initiation protocol …
Transfer of Part of a Push to Talk Session
H Albertsson, J Holm - US Patent App. 12/091,220, 2009 - Google Patents
0001 1. Field of the Invention 0002 The present invention relates to methods and appa ratus
for use in a push to talk type service, for example a so-called push to talk over cellular …
for use in a push to talk type service, for example a so-called push to talk over cellular …
Online charging for supplementary services in ims networks
Y Cai, X Li - US Patent App. 12/865,998, 2011 - Google Patents
0001 1. Field of the Invention 0002. The invention is related to the field of IMS networks, and
in particular, to performing online charging for Supple mentary services provided for a …
in particular, to performing online charging for Supple mentary services provided for a …