Lucent Technologies 555-661-150 Benutzerhandbuch

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MERLIN LEGEND Communications System Release 6.1
Network Reference  
555-661-150  
Issue 1
August 1998
Call-Handling Scenarios 
Page 2-2
Networking Guidelines 
2
Networking Guidelines
2
This topic outlines general planning and setup considerations for networked 
systems, providing the information that you need in order to understand the 
sample private network scenarios presented in the next section of this chapter. 
Security issues are discussed in greater detail in Chapter 4, “Security,” and in 
Appendix A, “Customer Support Information.”
When systems are networked, follow these guidelines in order to make 
implementation of private network features go smoothly. These guidelines are 
based on the assumption that you plan to use the features listed below. Therefore, 
a coordinating system manager to oversee network -affecting changes is 
recommended.
Non-local dial plan for intersystem calling among extensions located on 
different systems on the private network
ARS dialing via private networked trunks to allow users in one system 
to access the public switched telephone network (PSTN) facilities 
connected to one or more other networked systems
UDP routing for intersystem calling and ARS use of tandem trunks
Whether you are working alone to manage multiple systems in a private network 
or working with others who manage other systems in a private network, the overall 
planning considerations affect all networked systems. 
The following topics do not explain programming procedures or details of all 
system features that the sections reference. For detailed feature information, see 
the 
Feature Reference. For detailed programming procedures, see System 
Programming. 
Non-Local Dial Plan
2
System managers in a private network create non-local dial plans so that local 
system users can call extensions in remote networked systems. This 
intersystem 
dialing is transparent to system users; they dial these calls as though they were 
intercom calls, using System Access (SA) or Shared System Access (SSA) 
buttons. Chapter 5, “
Network Management
,” includes information about such 
parameters as the valid number of digits, extension ranges, and patterns for 
programming non-local dial plans and routes. 
A non-local dial plan consists of extension numbers for the following:
Stations
Adjuncts
Listed Directory Number (LDN)
Remote Access