Review on Cisco SPA303-G1: Powerful 3 Line IP Phone with Display and PC Port by Alison Parker

This phone works great but requires a power adapter unlike the 504G which can use Power over Ethernet. With POE you only have one cable to your phone, but of course you need to make sure you have a POE hub! I assumed the 303G would be POE capable since it's similar to the 504G, but that was an incorrect assumption. You can buy an adapter separately that allows you to use POE, but it just separates the power and ethernet to the phone over two separate lines. I found it a bit awkward. The phone works the same as the 504G, but I had to buy power adapters to make it work. One phone was included, the other two weren't. Please note that the power adapter is 5V 1A 2.1mm. Many 12V adapters. I saw some people use 5V 2A which is for 504G phones. 303G states 1A but some comments said 2A adapters worked fine. We use Vonage Business and these phones help!