Enterprise IP Phone Using the Advanced Phone Functionsthe list, then in the Mode field, open the pull-down menu and choose Private Holdfrom the list.2) Press Confirm button to save the changes.Tone SettingsYou can define the frequency and time period of all the following tones:z Dialz Ring Backz Busyz Congestionz Call Waitingz Dial Recallz Recordz Infoz Stutterz Messagez Auto AnswerTo edit the tone filed via Web interface:1) Choose Phone->Tones.2) Enter the frequency and time period(in ms) as the following format:Frequency /Time Period (for example 400/200).3) Press Confirm button to save the changes, Cancel to cancel the change.Note:1. Please contact your system administrator for more information about thefrequency and time period parameters. You can enter up to 8 groups for each tone.2. If the frequency is set as 0, it means silence.- 47 -