User Guide for the Polycom CX300 Desktop Phone
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3. Hold Key —Holds an active call or resumes a held call.
You can also use the Hold key to clear a phone number that you have
entered before you have completed the call or to toggle between two active
calls.
4. Delete Key —Delete displayed data or reject incoming call.
5. Message Waiting Indicator Indicates that there are new
unheard messages.
6. Dial Pad—These 12 keys provide the 10 digits, the 26 alphabetic
characters, and special characters available in context-sensitive
applications.
7. Speakerphone Key —Allows for hands-free communication
during calls.
8. Headset Key Allows you to place and receive calls through a
connected headset (optional accessory).
9. Microphone Mute Key —Mutes local microphone during calls so
that others cannot hear you.
10. Volume Key —Used to adjust the volume
of the handset, speakerphone, and headset speaker during a call, and the
ringer if not in a call.
11. Hands-free Microphone—Picks up audio during hands-free calls.
12. Presence Status Indicator Indicates your presence state.
13. Speaker—For ringer and hands-free audio output.
14. Hookswitch