Table 3-26: Npi/Ton Values For Isdn Etsi - AudioCodes Mediant 2000 User Manual

3.3.7.8.3 Numbering Plans and Type of Number
The IP-to-Tel destination or source number manipulation tables allow you to classify
numbers by their Numbering Plan Indication (NPI) and Type of Number (TON). The device
supports all NPI/TON classifications used in the standard. The list of ISDN ETSI NPI/TON
values is shown in the following table:
NPI
Unknown [0]
E.164 Public
[1]
Private [9]
Level 2 Regional [1]
Level 1 Regional [2]
PISN Specific [3]
Level 0 Regional (local) [4]
For NI-2 and DMS-100 ISDN variants, the valid combinations of TON and NPI for calling
and called numbers include (Plan/Type):

0/0 - Unknown/Unknown

1/1 - International number in ISDN/Telephony numbering plan

1/2 - National number in ISDN/Telephony numbering plan

1/4 - Subscriber (local) number in ISDN/Telephony numbering plan

9/4 - Subscriber (local) number in Private numbering plan
SIP User's Manual

Table 3-26: NPI/TON Values for ISDN ETSI

TON
Unknown [0]
Unknown [0]
International [1]
National [2]
Subscriber [4]
Unknown [0]
Description
A valid classification, but one that has no information
about the numbering plan.
A public number in E.164 format, but no information
on what kind of E.164 number.
A public number in complete international E.164
format, e.g., 16135551234.
A public number in complete national E.164 format,
e.g., 6135551234.
A public number in complete E.164 format
representing a local subscriber, e.g., 5551234.
A private number, but with no further information
about the numbering plan.
A private number with a location, e.g., 3932200.
A private local extension number, e.g., 2200.
136
Mediant 2000
Document #: LTRT-68809