Lines Telephony Functions Use of a specific line (Signaling of the respective number) Selection of a specific line for one call
 
Selection of a specific line for one call
If you start a call and have not defined a standard line, the call is always started on the next free line. However, if you have assigned a specific number (e.g. a group number) to a line, you can choose a specific line for the next call and thereby signal a specific number to the destination subscriber. For information about assigning a number to a line button, see Chapter Configuring a Line Button.
This is how you call a subscriber using a specific line
1. Click on the Line Button of the line you would like to use to place a call. The line is activated.
2. Enter the number in the input field (using the keyboard). The number will be dialed at once.
Or
1. Enter the number in the input field (using the keyboard).
2. Click on the Line Button of the line you would like to use to place a call. The call will be started.