Toshiba Strata CTX, Руководство по программированию

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Strata CTX Programming - Part 2: CTX WinAdmin Programming 04/03
Network Directory Number
A Network Directory number consists of two elements: the Node ID and the local directory number. A
Node ID is a string of 1 to 6 digits that identifies one node on the network. A Network DN may be a simple
concatenation of the two elements in which the complete Node ID precedes the complete extension or the
two elements may overlap. In the event of an overlap, an Overlap Code identifies the digits to be
substituted for the received Node ID.
The Node ID allows a call to route through multiple Strata Net nodes until its destination node recognizes
it as a local call. Local Node IDs are programmed using Command 656 “Node ID.” Remote Node IDs are
programmed in Command 651 “Network Routing Plan Analysis” to define the appropriate outgoing route
to the desired destination. Digits received after the Node ID are passed on to the distant node without
analysis.
One node may have up to four Node IDs. A unique Overlap Code is programmed for each Node ID. The
Overlap Code allows the programmer to control the number of digits to be dialed for network calls and to
create a coordinated dialing scheme across the network. If the Network DN is to be a simple concatenation
with no overlap, the Overlap Code field is left blank. All Node IDs, local and remote, must be defined as
such in the Flexible Numbering Plan.
The following are examples of linked and overlapped Node IDs.
Linked:
•
Node ID = 789
•
Extension = 2345
•
Overlap Code = BLANK
•
Network DN = 7892345
Overlapped:
•
Node ID = 789
•
Network DN = 789345
•
Overlap Code = 2
•
Local Extension = 2345
This simple, powerful, logical tool will support large, complex networks. It is the means by which a
Coordinated Numbering Plan can be established across all Strata Net nodes including existing systems
with established numbering plans.
Network Feature Access Code
The Network Feature Access Code is similar to the Network DN but is used to access features in a remote
Strata Net node. Features may include routing features, such as Trunk Group Access and Least Cost
Routing, or user features such as Message Waiting and Paging.
The Network FAC format is:
Node ID (1~6 digits) + Local FAC (1~5 digits) + Parameters (unlimited).
For example, access’ Node ID 789 and uses that node’s LCR ( ) to dial directory
assistance in Boston.
Given their variability, Network Faces are usually processed without Overlap Codes. If a Node ID with an
Overlap Code has been established for local extensions, it cannot be used for feature access; a separate
Node ID must be established. If no Overlap Codes are used, one Node ID will serve for all purposes.