Wong at PCCW also believes that as service providers push through with fixed mobile convergence, there is likely to be even more integration between unified communications tools and wireless networks as they can be used to access even more powerful applications via 3G and WiFi networks.

"IPT will be seen moving further into the wireless space and handheld devices space," said Wong.

Avaya's Mak agreed that IPT will be applied more aggressively to mobile application areas. Vendors like Avaya and Alcatel are working with mobile vendors to enable converged mobile offerings that bring IPT features to the mobile worker. Both Avaya and Alcatel have worked with Nokia to extend many IPT functions to the Finnish firm's handsets and software platforms.

One possible scenario for users is enabling employees to manage just one business number and control where, when, and on which device they receive their calls, said Marc-Alexis Remond, director of marketing & business development, Enterprise Solutions Division, North East Asia, Alcatel Asia Pacific. In addition, all the benefits of an office phone, such as call conferencing, call back, and dial by name can also be delivered via a mobile phone within the enterprise environment, noted Remond.

Declining cost conscience