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DEFINITY Enterprise Communications Server Release 8.2
Overview
555-233-002
Issue 1
April 2000
Private Networking Features
109
Uniform Dial Plan (UDP)
Figure 14. DEFINITY ECS as Part of a DCS
Uniform Dial Plan (UDP)
A unique four- or five-digit number assigned to each station on the network. Uniform
numbering gives each station a unique number (location code plus extension) that can be
used at any location in the Electronic Tandem Network to access that station. DEFINITY
ECS enhances the standard UDP with the unrestricted 5-digit Uniform Dial Plan, which
allows up to five digits to be parsed for call routing.
1
DEFINITY ECS: DCS node
4
Packet Gateway
2
Processor Interface
5
Tie Trunk: DS1
3
Data links (TCP/IP protocol)
6
Tie Trunk: ISDN-Primary Rate Interface
switched network or private line
233002_1.book Page 109 Monday, February 21, 2000 8:28 AM