I have 8 Cisco 7940 office phones that are 6 Months old. They were given to me after the office where i work chaged phone systems multiple times. The link below shows all the features. These are great phones for office use. Great value. http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/ps1854/product_data_sheet09186a008008884a.html Call or email for questions 208-870-9374 Thanks Location: Boise it's NOT ok to contact this poster with services or other commercial interests idaho