These phones were used with Vonage service for less than 2 months.  We loved the phones and features but had complications with the service on our network.  They all have power cords.  27 speed dial keys.  HD speaker and handset.  Full color 4.3" LCD display.  Dual port gigabit ethernet ports.  2 adjustable height settings for the stand.  Wireless headset port.  We have 4 of these phones total, but this auction is only for one of them.  Message me if you are interested in more than 1.