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User Guide SoundPoint IP 550 Phone
2 - 10
Muting the Microphone
During a call, press . The Message Waiting Indicator turns red and a
microphone on the screen indicates that the other party (or parties) cannot
hear you.
Microphone Mute applies to all modes: Handset, Headset, and Hands-free
Speakerphone. You can still hear all other parties while mute is enabled.
To turn off Microphone Mute, press again.
Adjusting the Volume
Press to adjust receiver volume during a call. Pressing
these keys in the idle state adjusts the ringer volume.
Managing Call Lists
Your phone maintains local lists of missed, received, and placed calls. Each list
contains 100 entries.
Press followed by Call Lists > Missed Calls, Received Calls, or
Placed Calls. The following shows a Placed Calls list.
Manage the call list by doing the following:
• To edit the phone number, press the Edit soft key.
• To return the call, press the Dial soft key.
• To view information about the call, press the More soft key followed by
the Info soft key.
Note
To conform to regulatory requirements, handset and headset volume will return to a
preset level after each call, but your system administrator can change this.
Hands-free Speakerphone volume settings will be maintained across calls.