I am currently trying out the 3cx system. We purchased 10 Polycoms of different models to try. Because of the wiring in our building we need to go with phones that include a switch. The problem I've found is limited selection of phones with 1G switches. Also bot a Cisco 7945G but not working because of the firmware issue. The polycoms are falling out of favor because have the handset itself. The way the cradle works is incredibly bad. The handset falls off the cradle easily. The other issues we've had with the polycoms is getting message indicators to work, etc. but the physical issues are forefront. Are there any good recommendations for 1G phones?