Is anything being done to make telephone systems more energy efficient? How can I ensure we're using the lowest-power phone equipment?
Do you need advice?
Something is being done to make pretty much everything more energy efficient these days, although in some cases it is a bit of a tradeoff. Consider companies that are doing away with telephone systems in lieu of cell phones. VoIP and DC-powered phones are huge when you consider getting rid of power bricks and using a more energy-efficient power supply in a switch. Some phone systems are more efficient just by using power supplies that have better efficiency ratings. Most telephone manufacturers have some energy-efficient solution. I encourage everyone to challenge their vendors, make sure ROI statements are applicable to your environment (not just literature), and measure what is actually happening in day-to-day use.
This was first published in May 2013