| Troubleshooting | 235Audio IssuesSymptom Reason SolutionThe volume is set to 0. Adjust the volume.You cannot hear the audio duringa call. The far site mutes themicrophone.Contact the far site to checkwhether the microphone isunmuted.The speaker volume is too low. Adjust the volume.The muffled audio reception fromthe far site may be caused byhighly reverberant rooms.Contact the far site to speak closeto the phone.You choose a low-bandwidthaudio codec.Adjust the priority order of youraudio codec.Noise devices, such as computersor fans.Enable noise suppression.You cannot hear the audio clearlyduring a call.Dust and debris may cause theaudio quality.Do not use any kind of liquid oraerosol cleaner on the phone. Asoft, slightly damp cloth shouldbe sufficient to clean the topsurface of the phone if necessary.No audio input device. Audio input device is connectedcorrectly.The speaker of the far site isobscured or damaged.Ensure that speaker is notobscured or damaged. Do notstack items on top of the CP960conference phone.Far site cannot hear your audioduring a call.Your microphone is muted Unmute the microphone.The volume of the far site is set to0.Contact the far site to adjust thevolume.The users sit too far from or nearto the microphone.Adjust the distance.The audio pickup device is movedfrequently.Put the audio pickup device in thefixed location.Network congestion. Connect the networkadministrator.You may experience poor voicequality during a call, such asintermittent voice, echo or othernoise.Cable gets old. Replace the old cables with thenew cables, and then checkwhether the new cables providebetter connectivity.You cannot hear the ring tonewhen receiving a call.The volume is set to 0. Adjust the volume.
