Nortel Meridian Meridian 1 Feature Description And Administration page 1617

Figure 177
Network Call Redirection before TAT
Station A
Originating
Station A calls B
through tandem node
1
Figure 178
Network Call Redirection after TAT
Station A
Originating
Station C
PRI/ISL/INS
M1
node
(first call)
After Station C answers, antitromboning is invoked. This causes the
tromboned trunks to be released. Station A and Station C are connected at the
tandem node. The results of this antitromboning are shown in Figure 178.
Station C
3
Station A
and C are
bridged at the
tandem node
PRI/ISL/INS
M1
node
International ISDN PRI Feature description and administration
Trunk Anti-Tromboning
Station B is call forwarded
Tromboning
M1
Tandem
node
1
Station C
answers call
2
Tromboning
trunks
released
by TAT
M1
Tandem
node
Page 1617 of 1814
or hunts to C
(redirected call)
Station B
M1
Terminating
node
553-7757.EPS
Station B
M1
Terminating
node
553-7758.EPS
2