Aastra 400 Series System Manual page 521

Features
Fig. 235 Home alone
UG 1 (Private) contains users A, B, C and D. User D is also in UG 2, along with user E
(carpentry workshop). Home Alone is activated in both UGs.
1. An incoming outside call to the business number is answered by Mrs. Smith at
the office (user D).
2. All other internal and outside calls to UG 1 and UG 2 will obtain "busy".
3. Mr. Smith (user E) can still be reached by his staff from the outside via DDI.
521
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013