System Functions and Features as of I7.9
182
Call routing
sy
d-
020
0/3.
0
– I7.
9
– 1
1
.2009
Indirect Network Access
The PBX is connected to a specific network (network A). The destination network
(network B) is reached indirectly via this network. This case occurs frequently.
Fig. 79
Indirect access to network B via network A using LCR
For indirect access the phone number dialled must contain the following informa-
tion:
•
Call number of the destination user.
•
Network provider required (in the example network provider B).
•
The code information (in the example for network provider B) used by B to check
whether the caller is a subscriber to his network.
Network provider A can respond to the call in the following way:
•
He either routes the destination number on directly using his own numbering
plan.
•
He takes the call and waits for code information, such as the destination number,
to be transmitted by the caller in DTMF mode.
.ETWORK¬!
.ETWORK¬"
0"8
,#2
HAZAAENA
