Cisco Systems SPA508G Benutzerhandbuch

Managing the Audio Source and Volume

Cisco Small Business SPA50X and SPA51X Series SIP IP Phone User Guide

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To adjust the volume of the handset or speaker, lift the handset or press the 
Speaker button. Press + on the Volume button to increase the volume, or press - to 
decrease the volume. Press Save. (Not available for the Cisco SPA501G.)

To adjust the ringer volume, press + on the Volume button to increase the volume, 
or press - to decrease the volume when the handset is on-hook and the speaker 
button is off. Press Save. (Not available for the Cisco SPA501G.)

To mute the handset, speaker, and headset microphones, press Mute. The button 
lights red. Press Mute again to unmute.

If no audio device is on, pressing Mute has no effect. When switching from the 
speaker phone to the handset, the phone is unmuted automatically.

To use the speakerphone, press Speaker (the handset can be either on or off 
hook).

Install the headset as described in the 

. Steps to use your headset with the IP phone 

might vary. Consult the user documentation for your headset for more information.

To use a wired headset, press Headset on your phone and dial the number to 
place a call, or press Headset to answer a ringing call.

To use a wireless headset, lift the receiver off hook before speaking or listening 
through the headset.