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Two themes stood out at this year’s spring VoiceCon conference: green computing and delivering on the early promises of unified communications.

Between the unusual step of having former Vice President Al Gore speak to attendees via Cisco Systems’ Telepresence system in the March 19 keynote, and several vendors emphasizing the green features of their wares, the conference really raised awareness of technology’s potential contribution to the environment.

Nortel Networks, for example, introduced the Nortel Energy Efficiency Calculator, which allows users to model energy consumption to analyze the impact of current or planned network infrastructure deployments on energy consumption.

Read the full article on eWEEK.