The rise of VoLTE and VoWiFi

VVoLTE and VoWiFi have been long promised by the Telecom industry and vendors, but it’s only recently that their need has become more urgent than ever. Now that 3G networks are seeing their sunset, the number of VoLTE capable devices has grown significantly and consumers have become familiar with data-only plans, VoLTE is developing rapidly as the only real option of keeping voice services available for customers as we go to 4G or 5G only networks.

However, implementing a VoLTE/VoWiFi solution is not a simple task as both MNOs and MVNOs have to put together all elements needed as they are provided by separated vendors. This results in long and complicated projects and delayed go-to-market. Besides, the need for fallback to 3G generates complexities in the operational models.

To solve these shortfalls Summa Networks has developed an integrated, fully virtualized, cost-effective and unique VoLTE/VoWiFi solution, built on its own IMS Core: voLTEinabox.

Download the voLTEinabox brochure

Solution Description

Diagram voLTEinabox

Multi-generational HSS/HLR

  • All subscriber data management needs are covered by a single software suite that combines LTE HSS, IMS HSS, HLR and UDM, allowing seamless interworking between 3G, 4G, 4.5G and 5G.
  • 3GPP Release 15.
  • Complete offering for GSM, UMTS, LTE, IMS, Wi-Fi and M2M networks.
  • Support for multi-SIM, multi-IMSI, multi-MSISDN, multi-HPLMN/country, multi-profile and virtual routing instances.
  • AAA server for Diameter protocols.
  • Authentication Center (AuC).
  • Equipment Identity Register (EIR).

IMS core and application servers

  • P-CSCF / I-CSCF / S-CSCF – IMS session control: the device's first contact point into the core, routing of initial requests, and the signalling anchor for registration, authentication and service routing.
  • IP-SM-GW – provides SMS services for VoLTE and legacy devices; allows interworking towards other networks based on SMPP.
  • MMTel/ TAS – provides rich supplementary services, e.g. call-forwarding and call barring; acts as a conference-factory for VoLTE handsets.
  • MRF – provides network announcements and conferencing; implemented according to RFC4240; 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; acts as a media-anchor for voice calls.
  • LI – provides X1 to X3 interfaces towards the mediation function.
  • PCRF – manages QoS, charging and resource policies for voice and multimedia services, with Rx and Gx interfaces. Part of the Summa Networks Policy Function.
  • ePDG – allows untrusted access to the IMS as required for Voice-over-WiFi (VoWiFi), through encrypted tunnels; standalone solution independent of the EPC.
  • ENUM / DNS – resolves E.164 numbers to SIP URIs and next-hop addresses for the CSCFs.
  • VoNR-ready – the same IMS core that carries VoLTE and VoWiFi extends to VoNR for 5G Standalone voice.

Integration points

voLTEinabox sits in the core of a carrier network and, as a general scenario, integrates with:

  • MME / PGW / SGW: to receive the requests for calls from the devices in the network.
  • OCS: for charging purposes.
  • OSS/BSS: an API for Subscribers provisioning and management is available.
  • Optionally, and depending on customer network architecture it might integrate as well with an SBC or other elements.

Unique benefits

Flexible deployment model

Our solution can be deployed in bare metal, as a fully virtualized solution and as lightweight containers (Docker Swarm, Kubernetes) to run on any public or private cloud (e.g. Oracle, Amazon, RedHat, etc.) as well as on any server environment. This enables the carrier to unbundle software and hardware / Cloud infrastructure.

Standard-based and flexible

Our solution is 100% standard-compliant based on 3GPP, SIP, and has been integrated with the hardware and software of all legacy suppliers. This provides the highest possible flexibility to integrate both with legacy architecture and innovative (open-source) applications.

Customer Focused

Our agile product development and deployment process enables us to incorporate new client requests quickly - ca. 80% less time compared to legacy suppliers - and co-develop new solutions.

Cost-effective and flexible commercial model

We offer the most competitive commercial VoLTE-solution in the industry.

Quality

Our software components are carrier-grade to guarantee the highest possible uptime.

Scalable

We can scale up our clusters from a few thousand to millions of subscribers.

Our Satisfied Customers

About

Summa Networks

Summa Networks develops and delivers a complete, modular Full Core for Mobile, IoT and Private Networks — covering every generation from 2G to 5G SA in a single, cloud-native suite. What began in 2015 as a NextGen HSS/HLR has evolved into a full mobile core platform: HLR, HSS, UDR, UDM, AUSF, PCRF, PCF, AAA, SMSC and EIR, deployable standalone or combined, with full interworking between generations and no vendor lock-in. Today, MNOs, MVNOs, IoT carriers and private network operators worldwide rely on Summa Networks to modernize their core at their own pace, with controlled TCO and without disrupting live services.

40+
Clients
30+
Countries
90M+
Subscriber capacity

www.summanetworks.com

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