# HCI/CTI - Desktop Appearance

The following actions appear at the desktop during an HCI call request:

Initial Telephone State | Multiline Telephone | Standard Telephone
On hook and idle | The telephone enters Handsfree mode. As the call is dialed, progress tones are returned to the telephone and are heard through the telephone's speaker. | The call appears to the user as a maturing Callback. The source station is rung with Callback cadence. When the user goes off-hook, the destination digits are dialed.
Off-hook but not engaged in a call (dial tone heard) | The call is processed as if it was dialed by the user | The call is processed as if it was dialed by the user.
Engaged in a call | The current call is placed on consultation hold, and the new call is established. | The current call is placed on hold, and the new call is established.
Engaged in a call on a non-prime line | If the call request is for a line other than the one in use, and Auto-hold is programmed for the set, the current call is placed on Hold, and the new call is initiated on the other line. If Auto-hold is not programmed, then the current call is disconnected and the new call is initiated on the other line. | Not applicable.