Grandstream GRP2616 IP Phone | 6 Lines, 6 SIP Accounts | 4.3-Inch Color Display | Wi-Fi 5 | Dual-port Gigabit Ethernet with Integrated PoE

Fantastic phone system. Wonderful quality, intuitive interface. The recordings sound clear and crisp.Bluetooth connection to a hands free is surprisingly robust and easy.I have worked with several phone systems and this has been the best, coupled with the Grandstream UCM6302A server, and the system is working well.Be careful, though, this requires a pretty sophisticated setup, it is not plug and play, but none of these systems are. Make sure you have tech support or patience and a couple hours of YouTube guidance.

I bought these to replace an older Grandstream on RingCentral. I fiddled with the settings on the web interface, and got it to make and receive calls. The other party could hear me, but I couldn't hear anything. After digging around, and even copying the settings from the old phone, I thought the phone was broken. Then I noticed the NAT was set to auto. I turned it off. Instant fix. Wasted a few hours, but I'm a law guy, not an IT guy. After that, no issues. The large screen is nice. The sound is perfect. Everything I do is speakerphone, and it sounds like the other party is sitting beside me. Built in noise cancelling so the other party can't hear my printer or any other small noises. Couldn't ask for more.

I am all the way grandstream and this is one of their best phones feature wise for the money. Sound is really great, the design of the lcd screens is great. It's a great phone for starters all the way to professional.