The Powertouch 390 phones from Sayson are by *far* the easiest to use phones for the Talkswitch! The Talkswitch TS-600 we sell is also of similar functionality. There is no comparison for ease of use between the Powertouch phones, and the other phones when used with Talkswitch. These phones are pre-programmed for the Talkswitch system. These phones are not just phones with codes stored in buttons, they are scripted, menu driven context sensitive phones, the easiest to use! This phone is *not* the same as the PT-390 sold on most competitors sites! Those are nothing more than plain Aastra phones with a few defined buttons (and a different Aastra part number), they are much less expensive! This is the TES13211 model of the PT-390. If you are interested in the cheaper version of the phone, instead, go with the PT-470 which is much better for Talkswitch. These phones are professionally programmed (via a programming language) to work with Talkswitch seamlessly. We LOVE this phone! Do not purchase this phone if you are not planning on using it with Talkswitch!