From The Private Leased-Line Network Into The Public Network - Aastra 400 Series System Manual

Call routing
6. 8. 2 From the private leased-line network into the public
network
A PINX will route an incoming call from the private leased-line network on towards
the public network if the incoming call has a phone number
• with NPI = E.164 or
• with an exchange access prefix.
call number with NPI = E.164
If the numbering plan identifier of an incoming call's phone number corresponds
to type E.164, the call will be routed directly to the route set under Transit route by
the incoming trunk group at a gateway or transit PINX.
The numbering plan identifier is set under NPI in the route configuration of the
source PINX.
[1] One and the same trunk group cannot contain both analogue and digital network interfaces.
Transit routing from private leased-line network → public network with NPI = E.164
Fig. 113
261
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013