Subscribers use smartphones that support VoWiFi to initiate voice or video calls when Wi-Fi connection is available.The Huawei VoWiFi solution complies with 3GPP specifications and uses the EPC (ePDG), SingleSDB (3GPP AAA), and IMS as the core control architecture. Common subscribers can access IMS networks through Wi-Fi hotspots and use HD voice and video services, implementing seamless handovers to VoLTE networks.

VoWiFi greatly improves indoor coverage, decreases cost of MVNO, provides cost efficient roaming solution, and increases carrier competitiveness.

Customer Value


Cost-efficient Roaming Solution

VoWiFi solution support international roaming call.It permits user access to home country EPC network when abroad. Operators can provide users with relatively inexpensive roaming services for more high-end users.


Improved Indoor Coverage

VoWiFi solution can well sovled the problem of indoor coverage network construction in early VoLTE.As a significant complement for VoLTE,It provides more high-quality communication services for subscribers.


Enhance Competitiveness 

VoWiFi helps operators to develop new business, increase user stickiness, and enhance competitiveness of voice solutions.


Reduce Air Rental Cost

VoWiFi helps MVNO to reduce huge rental costs. VoWiFi user can access any Wi-Fi. It can help operators to decrease air interface rent, make more profits

Technical Topics

Technical Analysis on Huawei VoWiFi Solution

VoWiFi greatly improves indoor coverage, decreases network rent, provide cost-efficient roaming solution, and increases carrier competitiveness. Huawei VoWiFi solution supports untrusted WLAN-based native VoWiFi and app-based VoWiFi.

Related Solutions

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The Huawei VoLTE solution evolves from CS to all-IP VoLTE networks to provide HD voice, HD video, and rich media services for subscribers.


CloudDB Solution

Huawei developed CloudDB, which is oriented towards the 5G and ICT convergence. It builds a unified and convergent data center to manage subscriber data efficiently and flexibly.

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ICS Solution

The ICS solution provides unified services experience for 2G/3G subscribers and IMS subscribers, and simplify network architecture and O&M.

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