| Configuring Call Settings | 171For VC880/VC800/VC500/VC200/PVT980/PVT950, on your remote control, press or OK key to openTalk Menu, and then enable DND.On your VP59, tap > DND.• On your CP960 conference phone, go to More > DND.• On your CTP20, tap > DND.Enabling Fast Audio Call for CP960 Conference PhoneIf you enable this feature and users register SIP accounts or H.323 accounts in VCS system, you can view theinterface of Audio Call on CP960 conference phone. You can tap Audio Call to place an audio call, and the call isplaced via SIP account or H.323 account by default. This feature is only applicable to VC200/VC500/VC800/VC880.Procedure1. On your web user interface, go to Setting > Call Features.2. Enable Fast Audio Call.Configuring Ringback TimeoutThe ringback timeout defines that if the remote party does not answer your call within specific time, the call will behung up automatically.Procedure1. On your web user interface, go to Setting > Call Features > Ringback Timeout(30-240).2. Configure and save the following settings:Parameter Description Configuration MethodRingback Timeout(30-240) Configure the ringback time(seconds).Note: the valid value is from 30to 240 and the default value is180.If it is set to 180, the call willbe hung up automatically if theremote party does not answer thecall within 180s.Web user interfaceConfiguring the Auto Refuse TimeoutThe auto refuse timeout defines a specific period of time after which the system will stop ringing if the call is notanswered.Procedure1. On your web user interface, go to Setting > Call Features > Auto Refuse Timeout(30-240).2. Configure and save the following settings:
