The T73U is a simple, reliable everyday desk phone with a 2.8-inch color display, 8 line keys, and a USB port for headsets. An easy step up from the T43U with the same familiar button layout.

What's in the Box

Setup Steps

Step 1: Attach the stand

Slide the stand into the back of the phone. It fits two ways: low-angle side up for a 41-degree tilt, or flipped for 46 degrees. A wall mount bracket is also available.

Step 2: Connect the handset

Plug the handset cord into the handset port on the back. A wired headset plugs into the headset port next to it.

Step 3: Optional: Connect USB devices

The USB port supports USB headsets, the EXP55 expansion module, the BT41 Bluetooth adapter, and the WF50 Wi-Fi adapter.

Step 4: Connect power and network

Two options: