Operational Features41-001160-01, Rev 00, Release 2.3 5-339Configuring Operational FeaturesAudio Transmit and Receive Gain AdjustmentsThe audio gain properties for the IP phone handset, headset, and speakerphone isadjusted to reduce side-tone and echo on the local and far-end equipment. You canadjust these settings from -10 db to +10 db to best suit your comfort level anddeployment environment by using the following parameters in the configurationfiles:• headset tx gain• headset sidetone gain• handset tx gain• handset sidetone gain• handsfree tx gain• audio modeThe default setting for these parameters is 0 (zero).The following table describes each parameter.Note: Aastra Telecom recommends you leave the default of 0 (zero) asthe settings for these parameters.Parameter DescriptionHeadset tx gain The increased (+db) or decreased (-db) amount of signal transmitted fromthe headset microphone to t he far-end party.Headset sidetone gain The increased (+db) or decreased (-db) amount of sidetone signal from theheadset microphone to the headset speaker.Handset tx gain The increased (+db) or decreased (-db) amount of signal transmitted fromthe handset microphone to the far-end party.Handset sidetone gain The increased (+db) or decreased (-db) amount of sidetone signal from thehandset microphone to the handset speaker.(continued)
