If you’re still keen on more traditional phones, check out our best cordless phones. Otherwise, read on to see the best IP phones to buy. Whether from the on-board speakerphone or from the earpiece, the full HD audio provides exceptional call quality. Setup is a fairly simple process that requires a little Internet know-how to assign devices to users, as well as connect directly to the Wi-Fi signal. The overall build quality complements the budget-friendly pricing to make the DP720 a fantastic choice for homeowners or office renters who want something inexpensive and reliable. Beyond its feature set, the HD2 handset offers two-inch color screen and picture caller-ID with the ability to sync pictures and contacts from Facebook, Google, Yahoo, LinkedIn, Outlook and your Mac address book. Additionally, the HD2 utilizes DECT technology, so you can count on superior call quality and security without interfering with the existing Wi-Fi network. DECT technology also offers extended range away from the base, so you can feel free to move around the home or office without fear of losing a call. Requiring only a high-speed, fixed-line Internet connection, the Ooma service has a varied spread of pricing, including international calling, voicemail transcription, pay-as-you-go and more. Headset support - Will you be the only person using your VoIP phone service, or will an entire office need access? While some headsets offer expandability, others are locked to a single device. If you need multiple phones, be sure to check the maximum number of headsets a system will support. Contact integration - Moving over your contacts to a VoIP phone can take quite a bit of effort, especially if your selected device requires them to be entered manually. Consider choosing a phone that supports advanced contact transfer from your smartphone or computer if you have a large address book.