Own line settings, When are own line settings required – Ericsson DT570 User Manual
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Settings
When are Own line settings required?
You only need to make O w n line settings if one or more of the following
situations are applicable:
•
If you want to make calls in different networks using the phone book.
•
If you want to store international phone numbers in the phone book
with a + for the international access code.
•
If internal numbers are stored in the phone book as complete phone
numbers with at least the PBX prefix.
Own line settings