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VoLTE & VoWiFi Solution

The Summa Networks HLR/HSS is the unified SDM behind successful VoLTE and VoWiFi deployments — managing subscriber profiles from 2G to 5G and enabling multi-IMSI, multi-SIM services to compete with OTT players.

Use case

VoLTE VoWiFi Solution — Unified Subscriber Management

Deploying a VoLTE VoWiFi solution requires a unified SDM that manages subscriber profiles across 2G, 3G, LTE and IMS from a single platform. The Summa Networks HLR/HSS solves the interworking challenge — with multi-IMSI, multi-SIM support and full IMS integration.

The challenge

VoLTE is not “Why” anymore — it’s “When”

VoLTE and VoWiFi have long been signalled as one of the most desired innovations in mobile networks. Better quality, more efficient systems as voice is translated into IP packets, and innovative applications around voice are the promises of this new paradigm.

However, deployment has taken much longer than expected. Several hurdles appeared: scarcity of compatible devices, fierce competition from OTT players collapsing voice revenues, and the complex requirement to interwork with 2G, 3G, VoIP and PSTN. Complexity of deployment combined with fading revenue meant priority was given to 4G LTE for data instead.

Things are changing as carriers evolve their networks on the path to 5G. VoLTE/VoWiFi deployments are now accelerating to save on network bandwidth, offload traffic, offer rural coverage and deliver innovative services — seamless connections across all devices, indoor coverage and more.

Still, some challenges remain — particularly around CS fallback and interworking with legacy technologies. The key to a successful deployment is having a unified SDM that manages subscriber profiles across all generations.

The solution

The SDM that solves the interworking challenge

Summa Networks HLR/HSS has proven to be an essential part of any VoLTE/VoWiFi deployment. Having an SDM solution that holds all subscriber profiles from 2G to future 5G is crucial to solve the interworking challenge. And all multi-profile capabilities — multi-IMSI, multi-SIM — set the foundation for new services creation around voice to effectively compete with OTT players.

Together with IMS cores from our partners we can create a complete solution to help you implement your VoLTE/VoWiFi strategy end to end.

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