"While the next several years are going to be very difficult for everyone, including high tech, I've been through nuclear winter -- it was 2000 and 2001 -- and I don't believe that this will be quite as difficult a time for high tech as that was," Giancarlo said in a keynote address at the VoiceCon trade show in San Francisco. He was a longtime executive at Cisco Systems until taking over Avaya earlier this year.

Giancarlo does expect a "flight to quality" as enterprises adjust their plans or deal with consolidation in their own businesses. "There will be fewer vendors, without a doubt, in this industry several years from now than there are today," he said. Avaya's private buyout by Silver Lake Partners and TPG Capital in 2007 is an advantage, Giancarlo said, because it allows the company to focus on long-term goals instead of the quarterly financial results that public companies have to deliver.

As one of the biggest players in IP (Internet Protocol) phone systems and the "unified communications" infrastructure of voice, video, messaging and presence that has built up around them, Avaya has staying power, said Giancarlo. But to succeed, Avaya has to shift its focus from the needs of network engineers to those of end-users, he said.

Putting voice and all other forms of communication on packet networks originally was about saving money through consolidation and making IT administrators' jobs, such as adding and moving employees in the phone system, easier, Giancarlo said. Now it has to help general employees do their jobs, he said. They need unified communications features to be integrated with their daily business applications, which now include tools such as social networking that originally were conceived for personal use, he said. People need to be able to create their own communications environment with the tools they are comfortable with, he said.

"We have, to some degree, lost control of that end-user. ... I think we need to look at that as a positive thing," Giancarlo said.