User's Manual 520 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Note:
• You can configure multiple rows with the same NPI/TON or same SIP 'phone-
context'. In such a configuration, a Tel-to-IP call uses the first matching rule in the
table.
• To add the incoming SIP 'phone-context' parameter as a prefix to the outgoing
ISDN Setup message (for digital interfaces) with called and calling numbers, from
the 'Add Phone Context As Prefix' drop-down list (AddPhoneContextAsPrefix),
select Enable.
Table 24-7: Phone Contexts table Parameter Description
Parameter Description
Index
[PhoneContext_Index]
Defines an index number for the new table row.
Note: Each row must be configured with a unique index.
NPI
npi
[PhoneContext_Npi]
Defines the Number Plan Indicator (NPI).
 [0] Unknown (default)
 [1] E.164 Public
 [9] Private
For a detailed list of the available NPI/TON values, see Numbering
Plans and Type of Number on page 529.
TON
ton
[PhoneContext_Ton]
Defines the Type of Number (TON).
 [0] Unknown
 [1] International-Level2 Regional
 [2] National-Level1 Regional
 [3] Network-PSTN Specific
 [4] Subscriber-Level0 Regional
 [6] Abbreviated
The applicable values depend on the NPI value:
 If you select Unknown as NPI, you can select Unknown.
 If you select Private as NPI, you can select one of the following:
[0] Unknown
[1] International-Level2 Regional
[2] National-Level1 Regional
[3] Network-PSTN Specific
[4] Subscriber-Level0 Regional
 If you select E.164 Public as NPI, you can select one of the
following:
[0] Unknown
[1] International-Level2 Regional
[2] National-Level1 Regional
[3] Network-PSTN Specific
[4] Subscriber-Level0 Regional
SIP Phone-Context
context
[PhoneContext_Context]
Defines the SIP 'phone-context' URI parameter.
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