This document is about the Polycom IP 331 Phone User Guide. It describes the basic phone features such as making, answering, and ending calls, muting the microphone, holding and resuming calls, redialing numbers, transferring calls, call forwarding, speed dialing, using Do Not Disturb (DND), voicemail, viewing call lists, three-party calls, university directory, customizing the phone, contact directory, adjusting speaker and ringer volume, and customizing ring tones.
This guide explains how to use the Polycom IP 331 desk phone, covering basic phone features, placing and answering calls, and adjusting volume and ringer settings. It includes details on handset, speaker‑phone, and optional headset operation, as well as LED indicators and line status.
Advanced functions such as call transfer, call forwarding, speed‑dial setup, Do Not Disturb, voicemail, three‑party conferencing, and contact directory management are described. The manual also covers on‑demand services like call pickup groups and conference room booking.
| LED indicators | new messages LED, line status LEDs, call status LEDs |
|---|---|
| Line keys | up to two assignable line keys |
| Speaker‑phone | hands‑free communication available |
Enter the number and pick up the handset.
Press the soft key, then select Do Not Disturb and choose Enable.