Strata CIX 200, Programming Manual

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Applications Guide
Networking
Strata CIX Programming Vol.1 12/09
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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 Prog 656 Node ID. Remote node IDs are
programmed in Prog 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, 789 9 16175551212 access’ node ID 789 and uses that node’s LCR (9) to dial directory
assistance in Boston.
Given their variability, Network FACs 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.
Digit Manipulation
Digit Manipulation is the term for the altering of an original string of dialed digits in order to re-route a call or
connect it to a specific service. Digit Manipulation is usually applied to the leading digits in the string which
appear left-most in written form. Strata Net uses two forms of manipulation: overlap codes, described
above for inbound calls, and network digit modification tables for outbound calls. The network digit
modification tables contain up to 64 treatments in each of which as many as 10 leading digits may be
deleted and as many as 23 leading digits substituted. These 64 treatments may be applied to any of 64
route definitions.