Call routing
196
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
Call destination: Busy User Group
A user group is busy if all its members are busy, if call waiting is rejected, if call wait-
ing is not enabled for any of the user group members and if neither the element
operator console nor the element general bell is activated.
A UG with activated Home Alone is busy if at least one of the UG’s users is in an out-
side call or an internal call (see "Home alone", page 519).
If a user group is busy, an incoming call is routed to user group 16. If user group 16
is also busy,
• the caller in the public ISDN network will obtain the congestion tone after call
waiting has been rejected;
• the caller in the private leased-line network will obtain the congestion tone.
• a call from the public analogue network will wait until the user is free after call
waiting has been rejected.
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