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Figure 117
Tandem NCFAC
1
Station A
2
Station A
Note: Sets A, B, and C must have a
CLID display to see a reason for
redirection, a name or number.
553-2901-301 Standard 9.00 January 2002
Network Call Redirection
•
The message that accompanies the call from the tandem to the
terminating node contains the called number (Station C), the calling
number (Station A), original called number (Station B), the original
reason for redirection (NCFAC), and the redirection counter that has a
value of 1.
•
The terminating node sends a message to the originating node that
contains the call forwarding information along with an indication of
ringing Station C.
•
When Station C answers the call, a message indicating this response is
sent first to the tandem node and then relayed to the originating node.
Originating
Node
PRA
Originating
Node
PRA
Tandem
Node
PRA
NCFAC to Station C
Station B
Tandem
Node
PRA
Station B
Terminating
Node
Station C
Terminating
Node
Station C
553-1808