Allows users to change their Wrap-up Time (User | Telephony | Call Settings) setting. Other phones or applications monitoring the user's status will indicate the user as still being busy (on a call). Hunt group calls will not be presented to the user.
If the user is using a single line set, direct calls also receive busy treatment. If the user is using a mutli-line set (multiple call appearances), direct calls to them will ring as normal.
It is recommended that this option is not set to less than the default of 2 seconds. 0 is used to allow immediate ringing.