Prioritizing Wi-Fi Calling

TRENDS AND OPPORTUNITIES

Growing adoption of Voice over Wi-Fi (VoWi-Fi) is reshaping voice delivery as operators use Wi-Fi to enhance indoor coverage, improve call reliability, and reduce reliance on radio infrastructure.

Increasing device intelligence, covering network selection, IMS behavior, QoS, and handover, drives the need for harmonized end-to-end guidance across devices, Wi-Fi networks, and operator cores.

Enterprises now focus on high-quality Wi-Fi voice for hybrid work and mission-critical communications, campus mobility accelerating demand for interoperable deployment models.

Rising expectations for roaming and session continuity, supported by OpenRoaming and Wi-Fi 7/8, and converged Wi-Fi/cellular architectures creating opportunities for unified frameworks that enable seamless movement across diverse networks.

BUSINESS & MARKET BENEFITS

The global shift toward Wi-Fi-first voice strategies enables operators to significantly reduce CAPEX and OPEX, while improving indoor coverage, voice call success rates, and customer satisfaction.

Unified guidelines for Wi-Fi calling support consistent user experience across homes, enterprises, and public venues, reducing support overheads and elevating the reliability of operator-branded services.

New business opportunities arise from enhanced interoperability, including enterprise-grade Wi-Fi calling service offerings, hospitality and venue communications packages, refined QoS management, and improved emergency-services handling.

Seamless transitions across Wi-Fi, cellular, and roaming environments strengthen service continuity, support premium connectivity tiers, and reinforce operator and vendor positioning in a competitive market.

EXPECTED OUTCOMES

Exploring Wi-Fi calling deployment models, defining key use cases, and addressing challenges through guidelines that cover QoS, security, roaming, interoperability, and consistent user experience.

Identifies interoperability gaps such as inconsistent QoS handling, device behavior fragmentation, roaming constraints, and varying levels of network readiness.

WBA-led recommendations provide aligned QoS frameworks, traffic prioritization models, security and roaming guidance, and best practices for device–network configuration.

Key Deliverables

Phase 1 – Deployment Guidelines and Implementation Specifications offering actionable recommendations for operators, OEMs, and infrastructure vendors, including configuration models, interoperability requirements, roaming frameworks, QoS parameters, emergency service considerations, and ecosystem readiness criteria.