VoIP Phones for Business

Start with your phone service

Most phones on this page are SIP phones: your phone service gives you a SIP account, and you register it on the phone. The spec sheets say how many each one takes: up to 4 SIP accounts on the Yealink T33G and up to 16 on the T46U and T48U, and up to 16 SIP lines on the Poly Edge E220 or 32 on the E300, E400 and E450. Before you buy, check that your provider supports the model. The "Works with your provider" table on this page shows only the platforms each listing or maker's sheet names, and our guide to Zoom compatible vs Zoom certified devices explains why that wording matters.

If your company calls through Microsoft Teams, choose a Teams version. On this page that means the Yealink MP45 Teams Edition or the Teams version of the Yealink CP965. HP lists Teams support for the Poly Edge E phones "via SIP gateway", so ask your IT team before you buy them for Teams. Not sure what your company uses? Talk to an Advisor.

Desk phone, USB phone or conference phone

IP desk phones (the Yealink T33G, T46U and T48U and the Poly Edge E series) connect to your network with an Ethernet cable. Each has two Gigabit Ethernet ports, and on the Edge E400 our listing notes passthrough to your PC, so your computer can connect through the phone.

A USB phone, the Yealink MP45, plugs into your computer instead. Yealink says the USB cable both connects and powers it, and in our MP45 review it needed no IT provisioning: you plug it in and use it with Teams or another calling app on your computer.

Conference phones are for meeting rooms. The Yealink CP925 has a 20 ft (6 m) pickup range for small to medium rooms, the CP935W runs on a built-in battery over Wi-Fi, and the CP965 has 13 microphones for medium to large rooms. Match the phone to the connection your room has: our guide to setting up a conference phone explains why. If your meetings run on Teams or Zoom from a laptop, look at our speakerphones instead.

Lines, keys and screens

The entry-level models are the Yealink T33G (2.4 inch color screen, 4 line keys) and the Poly Edge E220 (2.8 inch color screen, 4 line keys). The mid-range Yealink T46U has a 4.3 inch screen and 10 line keys, and the Poly Edge E300 a 3.5 inch screen and 8 line keys. For reception desks and people who juggle many calls, the Yealink T48U has a 7 inch touch screen, and the Edge E400 and E450 add a 2.4 inch second display with 6 more keys.

Need more keys still? The T46U and T48U each take up to three Yealink EXP43 expansion modules, for up to 180 more buttons. The Edge E450 takes one Poly Edge E expansion module for up to 66 more contacts, and our Edge E expansion module listing covers the E400 and E450.

Power: PoE or a power supply

Every IP desk phone here can run on Power over Ethernet (PoE, IEEE 802.3af): if your network switch provides PoE, the phone gets its power through the network cable. The phone-only models don't include a power supply. Yealink lists its adapter as optional, and HP sells the Edge adapter separately. As our Poly Edge power adapter listing puts it, you only need one if your switch doesn't provide PoE, and one adapter powers one phone. HP also notes that an Edge E phone on Wi-Fi, like the E450, must use a power supply.

The MP45 takes its power from your computer's USB port. Of the conference phones, the CP925 comes with a Yealink power adapter, the CP935W with an adapter and a charging cradle, and the CP965 runs on PoE (802.3at), with Yealink's YLPOE30 PoE adapter as an option.

Wi-Fi and Bluetooth

Built in: the Poly Edge E450 has Wi-Fi and Bluetooth 5.0, the Edge E220 has Bluetooth 5.0, and all three Yealink conference phones have Wi-Fi and Bluetooth 4.2. The Yealink T46U and T48U add them with Yealink USB dongles: the WF40 or WF50 for Wi-Fi, and the BT40, BT41 or BT52 for Bluetooth. The spec sheets list neither for the T33G, the MP45 or the Edge E300 and E400, which have NFC only.

Headsets for your phone

On the Yealink T46U and T48U, Yealink headsets such as the Yealink HA64 Pro, HA68 Pro, WH64 and WH63 E2 answer and end calls with no EHS cable or lifter. For the HA64 Pro, the Yealink telephone cord 3311093 for the phone's headset port is sold separately. The T33G uses the Yealink EHS35 adapter for Yealink WH-series headsets. On Poly Edge phones, the HA64 Pro and WH64 connect with the cord 3311093, and answering calls from the headset depends on the model, so ask us first. The headsets table on this page lists each pairing, and our wireless headsets for office phones and compatibility guide cover more phones.

Buying for a team

Standardizing an office on one phone? Get a team quote. We accept purchase orders, tax-exempt orders and payment terms for enterprise, government, education and healthcare teams, and an advisor can match each desk to the right phone, headset and power option.