NetNumber.com Product Data Sheet NETNUMBER IP MULTIMEDIA SUBSYSTEM (IMS CORE) SOFTWARE SOLUTIONS FOR ENABLING THE ALL IP MOBILE NETWORK The IMS (IP Multimedia SubSystem) is the primary component that permits the mobile network operator (MNO) to evolve their existing legacy networks (2G, 3G, etc.) toward a single, all IP consolidated infrastructure. Recent private LTE deployments by public safety, defense, and other enterprise verticals are realizing the benefits of the IMS core in terms of managing a single IP voice, video, and messaging fabric. IMS core solutions for both MNOs and enterprises require flexible, scalable, and easily managed solutions that are simpler in comparison to early IMS deployments and can achieve an improved total cost of ownership. The NetNumber IMS Core contains all the required components (P/I/S/E-CSCF) for a full IMS core implementation, and is designed to support Private LTE solutions required by public safety and defense, as well as commercial and service provider requirements. The NetNumber IMS core also has the unique ability to coexist with other virtual network functions in a common virtual compute footprint that may fit in a soldier backpack, an emergency vehicle, or scale to a larger IMS core in the data center or cloud. KEY CAPABILITIES OF THE NETNUMBER IMS CORE Complete IMS Core Solution The NetNumber IMS core includes all components necessary (P+I+S+E-CSCF) for a complete IMS core solution that is configured and managed under a single GUI interface or API under the TITAN architecture. Flexible Security Associations The NetNumber IMS core supports IPsec (IMS AKA) based security associations. The security associations are created based on the information negotiated during IMS registration, including protected local and remote IP address, client and server ports, SPI, algorithms, IK, CK, etc. TLS may also be used to protect the communication between the UE and the IMS core, when IPsec-based security association is not applicable. PCRF Support P-CSCF acts as the Application Function (AF) to the Policy and Charging Control Function (PCRF), i.e., it delivers information associated with the activation / deactivation of IP flows via the Rx interface.
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NetNumber.com
Product Data Sheet
NETNUMBER IP MULTIMEDIA SUBSYSTEM (IMS CORE)SOFTWARE SOLUTIONS FOR ENABLING THE ALL IP MOBILE NETWORK
The IMS (IP Multimedia SubSystem) is the primary component that permits the mobile network operator (MNO) to evolve their existing legacy networks (2G, 3G, etc.) toward a single, all IP consolidated infrastructure. Recent private LTE deployments by public safety, defense, and other enterprise verticals are realizing the benefits of the IMS core in terms of managing a single IP voice, video, and messaging fabric. IMS core solutions for both MNOs and enterprises require flexible, scalable, and easily managed solutions that are simpler in comparison to early IMS deployments and can achieve an improved total cost of ownership.
The NetNumber IMS Core contains all the required components (P/I/S/E-CSCF) for a full IMS core implementation, and is designed to support Private LTE solutions required by public safety and defense, as well as commercial and service provider requirements. The NetNumber IMS core also has the unique ability to coexist with other virtual network functions in a common virtual compute footprint that may fit in a soldier backpack, an emergency vehicle, or scale to a larger IMS core in the data center or cloud.
KEY CAPABILITIES OF THE NETNUMBER IMS CORE
Complete IMS Core Solution
The NetNumber IMS core includes all components necessary (P+I+S+E-CSCF) for a complete IMS core solution that is configured and managed under a single GUI interface or API under the TITAN architecture.
Flexible Security Associations
The NetNumber IMS core supports IPsec (IMS AKA) based security associations. The security associations are created based on the information negotiated during IMS registration,
including protected local and remote IP address, client and server ports, SPI, algorithms, IK, CK, etc. TLS may also be used to protect the communication between the UE and the IMS core, when IPsec-based security association is not applicable.
PCRF Support
P-CSCF acts as the Application Function (AF) to the Policy and Charging Control Function (PCRF), i.e., it delivers information associated with the activation / deactivation of IP flows via the Rx interface.
About NetNumberNetNumber, Inc. brings 17 years of experience delivering innovative signaling control solutions that enable carriers to accelerate implementation of new services across multiple generations of networks, while dramatically simplifying the core network and reducing operating costs. Today, we are the leading provider of Centralized Signaling and Routing Control (CSRC) solutions to the global communications industry. Please visit www.netnumber.com for product or solution information. For configuration and pricing details, please contact your local account representative via [email protected].
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User Authentication and Service Authorization
IMS-AKA or SIP-Digest can be used for user authentication. Authorization includes checks related to roaming and barring, and for the IMS service requested using IMS Communication Service Identifiers (ICSI).
Direct Routing of URIs
Routes selected URIs (PSI, STN-SR) directly to the destination network elements (IMS AS, SCC AS, ATCF) with direct routing indication obtained from the local data or as a result of HSS query.
Registration Procedures
Processes all registration scenarios including emergency registrations and scenarios initiated from MSC servers enhanced for ICS. IMS subscribers can be registered explicitly or implicitly using single or multiple registration flows while also supporting third-party registration based on the evaluation of the initial filter criteria (IFC).
SIP Notifier
S-CSCF accepts subscriptions to the registration eventtriggered from the UE for the Address of Record (AoR), fromthe P-CSCF for the AoR that has registered via the P-CSCFoutbound proxy, or from an IMS AS that is included in theInitial Filter Criteria (IFC) of the AoR.
Application Server Triggering
S-CSCF supports invoking IMS application servers throughthe evaluation of the Initial Filter Criteria (IFC). The subscriberprofile downloaded from the HSS references the IFC usingthe IDs of the shared IFCs to be evaluated. Services assignedto the local host (such as ENUM) are executed directly inthe NetNumber S-CSCF. Retargeting of forwarded calls issupported.
Multiple Contacts
S-CSCF supports multiple contacts during the establishmentof the IMS sessions. The routing of sessions is done accordingto callee capabilities and caller preferences. Sessions canbe forked towards multiple registered UEs maintained withinthe same contact group. Sequential search can be appliedbetween different groups of contacts.
GRUU and Loose Routing
S-CSCF supports the concept of public and temporary GloballyRoutable UA URIs (GRUU). Loose routing is supported as perthe indication obtained from the user profile downloaded fromthe HSS.
IMS Transit
Sessions routed towards an unknown IMS subscriber can be onward routed via a selected network element (BGCF, IBCF, TRF) that will be responsible for the selection of the next hop.
Emergency Call Handling
The E-CSCF receives emergency session establishment requests from the P-CSCF. The E-CSCF can selectively request via the Ml interface an external Location Retrieval Function (LRF) to retrieve the location information and deliver the proper Public Safety Answering Point (PSAP). The E-CSCF will route the emergency request to the PSAP accordingly.
Emergency Call Route Determination Function
If the external LRF is unavailable or unable to retrieve PSAP address for the emergency request, the E-CSCF will select a default PSAP address for that specific emergency service using the built-in Routing Determination Function (RDF). The built-in Routing Determination Function (RDF) delivers basic mapping of the received location information and the requested emergency service to the proper Public Safety Answering Point (PSAP).
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