The initial focus of this cooperation will be on Radio Frequency (RF) performance mapping in a mixed network environment. Future work will explore other technology challenges of convergence, such as handover between cellular and Wi-Fi networks, cross-radio signal sensitivity and battery life.

Converged handsets are reaching the market from leading manufacturers. These devices offer consumers a rich, dynamic wireless broadband experience and improved in-building coverage. They also allow carriers to allocate spectrum efficiently and provide differentiated services to subscribers. ABI Research expects the market for Wi-Fi/Mobile handsets to reach 100 million units annually by 2009.

"As more converged phones become available, and carriers announce plans to support convergence, cross-industry collaboration becomes critical to address pressing technological challenges. We are pleased to partner with CTIA, who has a proven track record developing test programs that have been embraced by mobile carriers," said Wi-Fi Alliance managing director Frank Hanzlik.

"The Wi-Fi Alliance has significant expertise in unlicensed wireless technology and developing certification programs that address end user expectations. By combining our knowledge bases we can ensure that carriers and subscribers alike have the best possible experience with converged devices," said CTIA vice president of operations Robert Mesirow.

The groups envision that testing will occur in shared top-tier test laboratories worldwide, each authorised to perform both CTIA and Wi-Fi Alliance tests, and they expect to announce further details regarding program availability in the coming months.