By now we know that IP systems and networks are being implemented at record pace, as enterprises of all sizes and in all types of industries recognize the value of IP. But contrary to popular belief, the real value of IP and voice over IP (VoIP) is not in inexpensive transport, cheap phone calls, and simpler management of a single network. Rather, the true value is in the new applications IP enables.

Looking beyond network efficiency, VoIP enables a range of applications either not previously available or requiring significant integration and customization, such as the multimedia contact center, integrated Web and audio conferencing, and most notably, unified communications (UC). Converged applications such as UC can take advantage of IP and enable companies to not only increase revenues and decrease costs, but enhance productivity and improve customer service.

But if you're not ready to take the plunge to IP technology, don't worry — you can implement a UC system today on a legacy TDM system, benefit from the UC applications immediately, and still reap the additional benefits when you migrate to an IP network. UC applications are supported by both TDM and IP-based communications systems, and newer UC systems will enable your organization to implement a UC system now, use it with your traditional phone system, and then easily migrate to VoIP later, when you're ready.

UNIFIED COMMUNICATIONS: BEYOND MESSAGING

You're probably asking yourself, isn't unified communications a fancy name for unified messaging? Let's be clear — unified communications builds upon UM, but adds much, much more.

Unified messaging delivers user access to voice, fax, and e-mail messages through a single interface, typically via the telephone, desktop PC, or mobile device. Unified communications adds real-time call control, collaboration, media handling, and further integration of voice and data applications.

Additionally, UC systems provide real-time call control and call completion applications including find-me/follow-me services, automated call return capabilities, missed call log with call return capabilities, and outbound dialing from groupware contacts or personal address books.

With UC, users can access their groupware calendar to accept or reject meeting requests via a speech interface over the telephone, set up new appointments or meetings, as well as check their schedule.

The latest generation of UC systems includes "personal assistants" with speech recognition technology to help mobile employees manage their communication, including messaging, call control, groupware, and other enterprise data.

The above UC applications are all available today for traditional circuit-switched PBX environments, as well as for IP-PBX environments. However, additional capabilities will emerge with the move to VoIP.

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