July 2003
NEC Business Solutions Ltd
594 – U2
Uniform Numbering Network
Doc. No. 8
201 - Re
lease 1.0
July 2003
SERVICE
CONDITIONS
Data Assignment
When a system other than the Xen IPK is being networked with a Xen IPK
system and the numbering plans cannot be changed on the existing system,
Tie lines in the Xen IPK system can be programmed to delete and add digits
to meet the existing numbering scheme.
Restrictions
DID Full Digit Conversion cannot access the Uniform Numbering
Network.
General
Attention should be given to the Uniform Numbering Network Access
Code plan to avoid a loss of Access Codes and to prevent duplicating
codes in the network.
The distant system number can be programmed as 2 or 3 digits.
The Xen IPK system has a maximum of 32 Trunk Group Access
Codes that are shared by outgoing Tie lines, ISDN and CO/PBX lines.
When a call from/to the remote-end is made to a busy station in the
Xen IPK system, the caller cannot set features such as Callback
Message, Step Call, or Camp-On.
Uniform Numbering Network does not access the Least Cost Routing
(LCR) feature in the Xen IPK system.
A maximum of 16 Numbering Blocks are available. This allows a
maximum of 17 connected systems per Uniform Numbering Network.
RELATED
FEATURES LIST
Feature
Number
Feature Name
E-3
E&M Tie Lines (4-Wire)E&M Tie Lines (4-Wire)
F-3
Flexible Numbering Plan
T-1
Tandem Switching of 4-Wire E&M Tie Lines
