Avaya Communication Manager Administrator's Manual page 1313

Network Level
Enter the value of the highest regional level employed by the PNP network. Use the following
table to find the relationship between the network level and the Numbering Plan Identification/
Type of Number (NPI/TON) encoding used in the QSIG PartyNumber or the Calling Number
and Connected Number IEs.
Valid entries
0
1
2
blank
PBX Identifier
Valid entries
0 to 9 or blank
Note:
The PBX identifier does not depend on the network level. Therefore, in a level 0
Note:
private network you can use this field to create a level 0 number longer than 5
digits.
Usage
NPI - PNP
TON - local
NPI - PNP
TON - Regional Level 1
NPI - PNP
TON - Regional Level 2
If this field is blank and the Send Calling Number and/or Send
Connected Number field is y or r with private specified for the
Numbering Format field on the ISDN Trunk Group screen, the
Calling Number and/or Connected Number IEs will not be sent.
If the field is left blank but private has been specified in the
Numbering Format field on the ISDN Trunk Group screen, the
Identification Number (PartyNumber data type) is sent for QSIG
PartyNumbers encoded in ASN.1-defined APDUs. In this case, the
ASN.1 data type containing the PartyNumber
(PresentedAddressScreened, PresentedAddressUnscreened,
PresentedNumberScreened, or PresentedNumberUnscreened) is
sent marked as PresentationRestricted with NULL for the
associated digits.
Usage
Enter up to 5 digits. Digits entered in this field are added to the
beginning of local extensions. The PBX identifier is added first,
before Level 1 or Level 2 codes. For example, in private networks
with a 7-digit numbering plan, the first 3 digits of the
private-network number are often considered the PBX identifier.
Numbering — Private
Issue 1 June 2005 1313