ASCOM Ascotel 2025, Системное руководство

Страница: 300 / 1141

ascom Ascotel 2025/2045/2065
HBT_20321104_02/B0_en Call Routing 2.123
5.2.1.2 Call from the Private Leased-Line Network
In the private leased-line network, direct dialling plans are set up only if calls are
to be routed to their destinations via call distribution elements in order to benefit
from the advantages of the flexible routing properties of call distribution elements
(see Page 2.69).
Call distribution elements can be dialled up directly if they have been allocated a
phone number in the numbering plan and if they exist as PISN subscribers in the
other PINXs. However, without a direct dialling plan it is more difficult to achieve
a numbering that matches.
Tab. 2.28: Flexible routing with and without direct dialling plan; difference in
Numbering
Calls from the private leased-line network do not have any DDI numbers per se. If
you set up a separate direct dialling plan, however, these numbers can also be
handled in the same way as DDI numbers.
Tip:
Only individual numbers can be organized via a direct dialling plan; the
others are organized directly in a numbering plan.
PINX 2
PISN subscriber PINX 1
Direct dial number PINX 1
Call distribution
element PINX 1
Destination sub-
scriber
with direct dialling
plan 250 250
®
250 1 250
without direct dial-
ling plan 250 – 1, phone number
250 251