Mitel 430 - Page 169

Call routing
169
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
• from the private leased-line network (QSIG) and
• whether there is a suitable direct dial number for the phone number.
In terms of call routing, calls from a virtual PISN are handled in the same way as calls
from the public network.
The diagram below shows how an incoming call is routed:
Fig. 83 Routing an incoming call
Congestion tone
Routing to
destination of
number found
Routing to the CDE of
the dialling in number
Suitable
number in
numbering
plan?
Direct
dialling
number
found
?
Routing to the CDE as
per trunk group setting
Network
type = public?
Direct
dialling plan
allocated?
Routing via transit route
towards exchange
Is E.164
the NPI call
number ?
Overwrite NPI
yes
no
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
Routing to the CDE as
per trunk group setting
Overwrite
NPI call
number?
Call via
analogue
network
interface
?
Incoming call from the public network or from
the private network