Mitel 430 - Page 105

Routing elements
105
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
Network interfaces
Network interfaces provide the access to the communication server from the outside.
The settings for the network interfaces are used to specify network-specific character-
istics (e.g. point-to-point or point-to-multipoint connection or the distribution of B chan-
nel groups at the primary rate access).
As network interfaces are not routing elements per se, they are not discussed further in
this chapter.
Trunk groups
Network interfaces with the same characteristics are grouped together in a trunk
group. For each trunk group, for example, it is specified whether the grouped network
interfaces are connected to a private network or the public network (see page 107
).
Direct Dialling Plans
Direct dialling is used to reach internal users or PISN users directly from the public net-
work. The direct dial portion of an incoming call number is used to link the call with a
specific call distribution element (see page 117
).
Routes
All outgoing calls are routed to a trunk group via a route. They also include calls routed
via the Least Cost Routing function and transit calls in a PISN (see page 113
).
Call Distribution Elements
Call distribution elements are used to route a call to a destination or combination of
destinations. The destination (or combination of destinations) can vary depending on
the allocated switch position. If the original destination is busy or does not answer after
a certain time, calls can be routed to alternative destinations (see page 120
).
Switch Groups
Certain destinations and functions are selected depending on the switching position of
a switch group. Each switch group has three switch positions, which are used for ex-
ample for Day, Night and Weekend (see page 128
).
User groups
In a user group incoming and internal calls are routed to a group of internal destina-
tions in accordance with a pre-configured call distribution pattern (see page 131
).
User configuration
All the user-specific settings are grouped together in the user configuration. This chap-
ter deals exclusively with settings that are specific to routing and identification (see
page 142
).