Yealink SIP-T31PThe phone we put on every front desk.

Why the T31P is the phone we ship most.

The T31P sits in a sweet spot: it is the cheapest Yealink that does everything a typical desk worker actually uses. Two SIP lines means you can run a personal extension and a shared department line on the same phone. The backlit display is bright enough to read in any office lighting. The full-duplex speakerphone is good enough that nobody complains. The headset jack supports a wired Plantronics for $50 or an EHS-bridged wireless headset for $200. It just works.

Where the T31P is honest about its trade-offs: it tops out at 10/100 Mbps ethernet, not gigabit. For 99% of voice traffic that doesn't matter — a single call uses about 90 Kbps. But if you're daisy-chaining the phone in line with a workstation that does big file transfers, the T31G (gigabit version) is $20 more and removes the constraint. Same hardware otherwise.

Where it isn't the right phone: power users who'd rather have a 4.3-inch color screen and 16 line keys (move them to the T46U), executives who care about the visual statement on their desk (T58W), or conference rooms (CP920 or CP965). For everyone else — receptionists, support agents, branch staff, lobby phones, the back office — the T31P is the default. We've shipped thousands of them and have yet to see one come back DOA.