Function

Description 

Active

Activate / Deaktivate the "outside line" dialing rule.

Maximum length (internal calling number)

Choose the maximum length of your internal telephone numbers. If the called number is longer than the value of the maximum length, the phone dials the "outside line" number automatically as a prefix.

Outside line

Choose the number which shall be dialed as a Prefix to get an "outside line".

Drop outside-line with incoming call

Drops the outside-line from the regular dialed phone number, e.g.: 0-069-123456789 will be changed to 069-123456789