Routing elements135System functions and features as of R3.0syd-0367/1.3 – R3.0 – 03.20135. 5. 2 Routing Functions for Incoming CallsCall distribution is allocated the following incoming routing functions:• Routing a call to a destination, depending on the position of the allocatedswitch group (see "Call destination", page 130).• Routing a call to an alternative destination if the original destination is eitherbusy or if the call goes unanswered (see "Alternative Destinations", page 132).• Restricting the number of calls incoming simultaneously on each call distribu-tion element (Incoming connections setting) As soon as this limit is exceeded, anysubsequent caller will obtain busy, provided no alternative destination CDE ifbusy has been defined.• Routing a call to data service destinations:Data service destinations can be configured for each call distribution element(see "Data service", page 275).• Routing a call to external remote control or modem:This destination is normally allocated only once in every system to enable accessto external remote control via a DDI number. (See "Remote controlling featuresfrom outside the system", page 537.)5. 5. 3 Routing Functions for Outgoing CallsOutgoing calls via the line keys of a key telephone are routed via the route enteredunder KT route (see "Key telephones", page 161).
