IP Multimedia Subsystem
Compelling mobile services, including Voice-over-LTE, that protect and generate revenue streams by enriching user experiences
Mobile networks are becoming exponentially more sophisticated, and a general shift away from the dominance of traditional circuit-switched voice service means that an operator's ability to host and deliver new and compelling services is closely related to its ability to compete. This competition is not only between other mobile network operators, but increasingly against over-the-top service providers, whose applications are rapidly pulling subscriber demand away from operator-provided services. Operators must increase their ability to deliver new and compelling services to entice subscribers back into the fold, protect the bottom line and generate entirely new revenue opportunities.
Samsung's IP Multimedia Subsystem (IMS) products provide a complete communications and services platform for the delivery of HD Voice service, as well as a wide range of multimedia services for both wired and wireless access networks (including LTE, WiFi and Fixed). Our IMS offerings include two components: The IMS Core, which handles general IMS session setup and orchestration, and the IMS-AS servers which host telephony services and other individual IMS-based applications.
1. IMS Core
The IMS Core handles basic IMS functionality such as subscriber management, session setup and policy and charging enforcement. It is critically responsible for maintaining Quality of Service and seamless interfacing between the IMS Application Servers and the Packet Core network. Additionally, Samsung's IMS Core provides an important layer of protection for the IP-based core network through the implementation of security functionality between different segments of the mobile network.
Samsung IMS Core system provides the following functional entities:
Proxy / Serving / Interrogation CSCF / BGCF, IMS-ALG/IMS-AGW, IBCF/TrGW, MGCF, SRVCC-IWF, IMS-MGW, IMS-HSS / SPR, ENUM, PCRF, IMS-MGW, MRF
2. IMS-Application Server (IMS-AS)
In addition to providing interworking functionality between the Packet Switched (PS) and legacy Circuit Switched (CS) networks, Samsung's IMS-AS is responsible for hosting and executing specialized services and applications within the operator's network such as Voice-over-LTE. By interworking with the legacy CS network, Samsung's IMS-AS ensures feature parity between services provided throughout an operator's entire network. Importantly, the IMS-AS infrastructure facilitates the modern communications paradigm of the convergence of voice, video, messaging and Internet. Through the Telephony Application Server (TAS), Samsung's IMS-AS system supports the continuity of voice supplementary services that were originally provided by the legacy CS network, while also providing conversion between legacy SMS and IP-based messaging.
The IMS-AS is also a key enabler for Samsung's InteractiV platform, which provided rich communications services between users.
High Availability & Robustness
Samsung’s IMS ensures seamless service delivery with critical backup redundancies built into the hardware to ensure high available and prevent service outages. Additionally, it is capable of intelligently adjusting QoS and service traffic priority in the event of user traffic spikes in order to maintain overall service availability. This provides operator's with a frontline tool to compete directly with Over-the-Top (OTT) services who cannot guarantee a minimum level of QoS to users over network infrastructure they do not control.
Ease of Integration
Samsung offers a full suite of end-to-end services to operators tailored to their unique environmental and infrastructural needs. With Samsung's extensive experience in LTE IMS provision, as well as key LTE IMS applications such as Voice over LTE, Samsung is strongly positioned to provide a wide range of technical support from IMS network design to verification. In addition, Samsung's commitment to industry standards and interoperability ensures that its IMS offerings delivery stable network operations, management and performance even in multi-vendor environments.