Avaya has announced a new solution that provides users of Nokia Eseries business devices with one number access and advanced enterprise telephony capabilities as they travel across private Wi-Fi and public cellular networks.

With a single Voice over IP (VoIP)-enabled mobile device , workers can "handoff" phone calls using dual mode communications, as they travel from inside a company building (Wi-Fi) to the outside environment (cellular) – and vice versa.

The solution – Avaya one-X Mobile Dual Mode – combines Avaya's IP-based applications with Nokia E-series business devices to deliver the benefits of fixed mobile convergence.

Enterprise telephony features available with the dual mode solution include conferencing, transfer and extension dialing. Security benefits include the ability to authenticate the Nokia E-series device to a PBX.