it depends on how many units you need. i can't stand the 4 line att, ge systems but people still buy them and after a year they break down. i do like the wireless panasonic 2/4 lines systems. available through a panasonic dealer (i recommend this over office depot as they should come in cheaper) or as i just said it is available at office supply stores. they are very easy to use. voicemail on every extension (up to 8) plus general mailbox. they also have stations with handsets if you don't like the handheld idea but they too are wirelss which reduces your cabling costs. you just have a need for (1) 4 pr cable ran to 2 jacks for the base station. cost efficient for the small guy, yet still expandable and feature rich.