Our IMS enables voice-services for your network. The solution is fully containerized, cloud-native and distributed. Its architecture is 100% standard-compliant (3GPP, Release 13).
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P-CSCF: Provides full transcoding support for AMR/AMR-WB based on a separated RTP worker |
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I-CSCF: Provides full Cx/Dx interface support and selects S-CSCF based on user capabilities and load |
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S-CSCF: Provides flexible application execution using a standards-based ISC interface and allows optional charging integration with standard Ro/Rf interfaces |
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E-CSCF: Allows to locate users based on Location Retrieval Function (LRF) and provides routing towards PSAP's |
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BGCF: Adds interworking functions (flexible in- and outbound routing options) and provides topology hiding |
IMS Core. IP Multimedia Subsystem.: Brain of the network, which processes the received signal, e.g., matches call to correct user IT.
Our application servers provide the full range of supplementary services.
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IP-SM-GW: Provides SMS services for VoLTE and legacy devices and allows interworking towards other networks based on SMPP |
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MMTel/ TAS: Provides rich supplementary services, e.g., call forwarding and call barring and acts as a conference-factory for VoLTE handsets |
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MRF: Provides network announcements and conferencing. Implemented according to RFC4240 (Basic Media Services in SIP) and set up as combined MRF-controller (MRFC) and -processor (MRFP) |
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SR-VCC: Enables seamless early or mid-call handover from 4G/5G to 2G/3G and acts as a media-anchor for voice calls |
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LI: Provides X1 to X3 interfaces towards the mediation function |
Application Server.: Host and execute services provided to users.
Our HSS lets you control the access to your network.
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It is based on a distributed, cloud-native setup and provides one central provisioning platform for services and subscribers |
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Interfaces towards IMS for voice (Cx/Dx) |
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Interfaces towards the mobile network for authentication and authorization (S6a/S6d/SWx) |
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The Diameter engine, the message queue and the worker processes of our HSS are set up as independent components |
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All network elements connect to multiple Diameter engines in order to provide maximum redundancy |
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Failure of single component does not affect the overall operation; all connections are redundant |
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Each component can be scaled independently of other components |
HSS. Home Subscriber Server.: Central provisioning of subscribers and their services.
Our OCS provides real time authorization and record-generations of calls and sessions.
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Ro-/Gy interfaces for providing online charging of calls and data sessions |
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The OCS enables the creation and real-time rating of Call-Data-Records (CDRs) |
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Our OCS enables the limitation of parallel calls per subscriber and barring of destinations as well as limits the duration of calls per destination |
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It provides fraud detection functionalities, e.g. notifications and automatic barring in case of rapid changes in turnover or minutes per destination / subscriber |
OCS. Online Charging Server.: Provides accounting and charging for services.
Our PCRF provides various functionalities to authorize and manage traffic in mobile networks.
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Our PCRF solution is fully virtualized, cloud-native and distributed |
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To ensure light-weight implementation, it focuses on core functions which are necessary to deploy VoLTE for mobile network operators of any size |
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Gx interface for the GGSN |
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Rx interface towards the IMS |
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The PCRF “light” is based on the same design principles as all Diameter-servers and provide the same performance and availability as HSS and OCS |
PCRF >>light<<. Policy and Charging Rules Function.: Provides network policies for mobile users.
Our ePDG allows to provide secure access to your network from untrusted non-3GPP IP access networks.
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The ePDG enables your subscribers to place voice calls over any WiFi connection, e.g. their own home network |
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It extends your wireless service coverage while reducing costs |
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Our ePDG acts as a security gateway by establishing an IPSec tunnel based on security information exchange (3GPP AAA) |
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The ePDG has implemented standard-based interfaces like: |
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IPSec/IKEv2-based SWu interface to communicate with UE |
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SWm interface between the ePDG and 3GPP AAA server |
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Additionally, it is able to interact directly with an HSS for networks without AAA server |
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SWx interface to the HSS |
ePDG. Evolved Packet Data Gateway.: Allows untrusted non-3GPP access to the EPC as required for Voice-over-WiFi.
Our DRA opens the possibilities for roaming and interworking.
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Our solution provides interworking and routing for Diameter servers |
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It is fully virtualized, cloud-native and distributed |
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Typical use cases include providing roaming capabilities for visiting subscribers, e.g. forward requests based on a rule-set |
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It is a flexible routing agent for a variety of Diameter messaging that supports message-manipulation and -validation |
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Our solution is highly flexible thanks to its extensive scripting capabilities |
DRA. Diameter Routing Agent.: Provides roaming capabilities for visiting subscribers.
For Further Information
Please Contact Us for more information.