The T43U is a dependable entry-level EARS desk phone with programmable line keys and a clean, simple interface. Great for everyday calling needs. This guide gets you from unboxing to first call.
Here’s a quick map of the T43U’s physical keys:
| Key | What it does |
|---|---|
| Line keys | Switch between lines or view BLF (busy lamp field) status |
| Soft keys | Context-sensitive — change based on what’s on screen |
| Navigation keys | Scroll up/down/left/right; OK to confirm |
| Mute/Unmute key | Mute or unmute your mic during a call |
| Headset key | Activate/deactivate headset mode |
| Voicemail key | Direct access to your voicemail |
| Redial key | Redial or open placed call list |
| Speakerphone key | Toggle hands-free speaker |
| Volume keys | Adjust call, ringer, or media volume |
| Cancel key | Go back or cancel an action |
Step 1: Attach the stand
Slide the stand into the back of the phone. You can set it at 40° or 45° depending on your preference.
Step 2: Connect the handset
Plug the handset cord into the handset and headset ports on the back of the phone.