Our High-Performing Core Network
Fully virtualizable on VMware, K8S, Docker and OpenStack containers
Voice over NR(VoNR)
Voice over New Radio (VoNR) is the IP Multimedia System (IMS) based voice calling services based on 5G access, realizing both voice and data services carried on the 5G network.
The New Radio network communication is the 5G radio access technology and the advanced & updated form of 4G radio access technology.
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Key Benefits
100% cloud implementation of IMS core deployment
Convergence of mobile and fixed access networks
Deliver seamless, uninterrupted roaming
Support hypervisor and dynamic lightweight Linux Containers
Simplify managing interconnect network topology
Carrier Grade Reliability Support for multimedia services
IPLOOK's vIMS solution Enable Voice over NR function
- At the beginning of 5G SA deployment, EPS Fallback becomes the solution on the way of 5G voice evolution due to the small coverage of 5G NR. With the gradual improvement of 5G NR coverage, users will be able to experience higher definition and quality audio and video call services brought by VoNR and enjoy 5G high-speed data Internet service while making calls.
- Both 4G and 5G networks must rely on a core network called IMS, also known as IP Multimedia Subsystem, which enables voice services under packet-switched networks.
Features
Comply to 3GPP R14 Standard
Application Servers
- IP-SM-GW: Provides SMS services for VoLTE and exciting devices and allows interworking towards other networks based on SMPP
- MMTel/TAS: Provides rich supplementary services, e.g., call forwarding and call barring and acts as a conference-factory for VoLTE handsets
- 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)
- SR-VCC: Enables seamless early or mid-call handover from 4G/5G to 2G/3G and acts as a media-anchor for voice calls
- LI: Provides X1 to X3 interfaces towards the mediation function
- I-CSCF: Provides full Cx/Dx interface support and selects S-CSCF based on user capabilities and load
Interfaces
- Rx: Between PCRF and P-CSCF
- ENUM: Between S-CSCF and ENUM-DNS server
- Sh: Between AS and HSS
- ISC: Between AS and CSCFs
- Gm: Between SBC/P-CSCF and UE (via EPC/PGW)
- Cx/Dx: Between CSCF and HSS
- Mg/Mj: Between CSCF and MGCF for PSTN-IMS interconnect
- SNMP: Towards Network Management System
- Ro: Between CSCFs and IN/OCS
- Rf: Between CSCFs and CCF
I/S/P-CSCF, BGCF, SBC, AS NE Functions
- I-CSCF: Provides full Cx/Dx interface support and selects S-CSCF based on user capabilities and load
- S-CSCF: Provides flexible application execution using a standards-based ISC interface and allows optional charging integration with standard Ro/Rf interfaces
- P-CSCF: Provides full transcoding support for AMR/AMR-WB based on a separated RTP worker
- BGCF: Adds interworking functions (flexible in- and outbound routing options) and provides topology hiding
