NEC DS1000/2000
Setting Prime/Automatic Line Selection
Prime Line Preference allows an extension user to place or answer a call by just lifting the handset. The user does not have to press a line key, loop key, or the ICM key first. This simplifies handling calls. In programming, you designate a line key, loop key, the ICM key, a trunk, or a trunk group as the extension’s Prime Line. With a line key, loop key, trunk, or trunk group, the associated trunk (or trunks) becomes your Prime Line. With the ICM key, you get Intercom dial tone when you lift the handset. Any number of extensions can have the same Prime Line assignment.