Nortel ISDN Signaling Link, Description, Installation And Operation

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Page 258 of 378 OA&M using MAT applications
553-3001-202 Standard 1.00 April 2000
The following comments apply to the “ITG Dialing Plan – Remote Node
Properties Digits dialed” window:
• The standard copy, cut and paste functions are available through
keyboard shortcuts or a menu.
• There is a maximum of 20 digits in a string.
• The NXX and LOC digit strings must be “leftwise distinct” within its
user dialing plan type (NXX or LOC) across all remote nodes in this node
dialing plan. The SPN and NPA must be distinct across all remote nodes
in this node dialing plan. For example, 011 and 0112 are not leftwise
distinct; 011 and 012 are leftwise distinct.
• The maximum number of strings is limited only by hard disk space.
• Scroll bars appear if necessary.
• The Type of Number (TON) and Numbering Plan Identification (NPI)
fields in the Information Element (IE) of the ISDN message direct the
call to the correct address translation table. Table 41 shows the mapping
between the NPI / TON fields and the resulting ITG dialing plan tables
which are searched.
Table 41
Mapping of dialing plan with TON and NPI
NPI TON Dialing Plan
E.164 National NPA
E.164 Subscriber NXX
E.164 International SPN
E.164 Unknown SPN
DSC
TSC
LOC
Private UDP LOC
Private SPN SPN