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NEAX2400 IPX ISDN Features and Specifications
Page 162
NDA-24311, Issue 1
C-158 Call Forwarding Supplementary Service (SS-CF) with Rerouting
Service Conditions (cont’d)
7. Reestablished route is decided by the routing selection pattern data programmed at the office where the
calling party is accommodated or at the gateway PBX office to the called station. Therefore, the improper
route or the route that is the same as before rerouting function may be selected depending on the office
data.
For Example 1) through 4), see the figure below.
Example 1) The most proper routing is selected by the office data.
Routing selection data to Office 83 programmed at Office 81: 1
st
RT2, 2
nd
RT1, 3
rd
RT3
RT2 is selected by rerouting function after Call Forwarding is successful.
Example 2) The improper routing is selected by the office data.
Routing selection data to Office 83 programmed at Office 81: 1
st
RT1, 2
nd
RT2, 3
rd
RT3
RT 1 is selected by rerouting function after Call Forwarding is successful.
Example 3) The improper routing is selected because of alternate routing.
Routing selection data to Office 83 programmed at Office 81: 1
st
RT2, 2
nd
RT1, 3
rd
RT3
All trunks of RT2 (the first choice) are busy.
RT1 is selected for alternate routing after Call Forwarding is successful.
Example 4) The improper routing is selected because of the difference of protocol.
Routing selection data to Office 83 programmed at Office 81: 1
st
RT2, 2
nd
RT1, 3
rd
RT3
RT2 (the first choice) is ACIS/CCIS line (not Q-SIG line).
RT1 is selected for alternate routing after Call Forwarding is successful.
For Example 5), see the figure below.
Example 5) The rerouting pattern is not changed from that before rerouting function.
81
Station A
(2000)
Station B (3000)
82
Station C
(4000)
83
Station B
2000 3000
Station C
RT2
RT1
Station A
1000
81 84
82 83
RT3
C.F. to Station C