AT&T DEFINITY Generic 3 Manuale Utente
Functions and Examples
Issue 4 September 1995
8-3
Two Switch Configuration
Look-Ahead Interflow is enabled through the use of call vectors and their
associated commands. For a two switch configuration, these vectors are
included in both the sending switch, which processes vector outflow, and the
receiving switch, which processes vector inflow. The Two Switch Configuration
for LAI is illustrated as follows:
associated commands. For a two switch configuration, these vectors are
included in both the sending switch, which processes vector outflow, and the
receiving switch, which processes vector inflow. The Two Switch Configuration
for LAI is illustrated as follows:
Figure 8-1.
Two Switch LAI Connections
Sending Switch Operation
The vector(s) in the sending switch use the
goto
command to determine whether
the call should be sent to the receiving switch. Recall that the
goto
command
tests various outflow threshold conditions (such as number of calls queued). If
the expressed condition is met, a branch is made to the appropriate
the expressed condition is met, a branch is made to the appropriate
route to
command. This command sends the call to the receiving switch, which, as
already noted, can accept or deny the call.
already noted, can accept or deny the call.
SENDING
SWITCH
RECEIVING
SWITCH
ISDN - PRI
INCOMING
CALLS
BACKUP
SPLIT
MAIN
SPLIT
PRIVATE NETWORK