How to Configuring Automatic Line Selection in Call Manager Express ?

On multi-line IP phones, lifting the handset automatically selects the first ringing line on the phone or, if no line is ringing, selects the first available idle line for outgoing calls. This is the default behavior for all multi-line IP phones. Under some circumstances, however, you might want to require that a line button be explicitly pressed to select an outgoing line or to answer an incoming call. In Cisco CME 3.0 and later, you have the flexibility to assign the type of line selection that each IP phone uses.

The Automatic Line Selection feature allows you to specify, on a per-phone basis, the line that is selected when you pick up a phone handset. Any of the following behaviors can be assigned on a per-phone basis: