Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones164T42S/T41S/T27G:Menu->Settings->Basic Settings->Bluetooth->Bluetooth (On)->Edit My DeviceInformation->Device Name[1]If you change this parameter, the IP phone will reboot to make the change take effect.Handset/Headset/Speakerphone ModeYealink IP phones support three ways to place/answer a call: using the handset, using the headset orusing the speakerphone. You can disable the infrequently used audio device as required.TopicHandset/Headset/Speakerphone Mode ConfigurationHandset/Headset/Speakerphone Mode ConfigurationThe following table lists the parameters you can use to configure handset/headset/speakerphone mode.Parameter features.speaker_mode.enable <y0000000000xx>.cfgDescription It enables or disables the phone’s speakerphone mode.PermittedValues0-Disabled1-EnabledDefault 1Parameter features.handset_mode.enable .cfgDescription It enables or disables the phone’s handset modePermittedValues0-Disabled1-EnabledDefault 1Parameter features.group_listen_in_talking_enable .cfgDescriptionIt enables or disables the IP phone to enter into the group listening mode by pressingthe Speakerphone key when you first answer the call using the handset.Note: The audio is sent only through the handset. So you are able to speak and listenthrough the handset, but you can only listen through the speaker.PermittedValues0-Disabled1-EnabledDefault 1Parameter features.headset_mode.enable .cfg
