This document is about the Polycom IP 450 Phone User Guide. It describes basic phone features such as making calls, answering calls, ending calls, etc. It also introduces other features such as muting the microphone, holding and resuming calls, redialing numbers, transferring calls, forwarding calls, speed dialing, etc.
This guide covers all basic phone operations for the Polycom IP 450, including placing and answering calls, using the handset, speaker‑phone, or optional headset, and handling call features such as mute, hold, transfer, and conference calls.
It also explains how to customize the phone, set up speed dial, ring tones, Do Not Disturb, call forwarding, call pickup groups, line monitoring, and on‑demand services like conference room booking.
| LED indicator for new messages | flashing green |
|---|---|
| LED status for active call | solid green |
During a call, press the mute key; a red light and an icon show that mute is active.
Press the soft key to toggle DND; the screen flashes and the line appears engaged while calls are forwarded to voicemail.