AudioCodes MediaPack MP-11X User Manual page 315

SIP User's Manual
Table 6-11: Number Manipulation and Routing Parameters
ini File Field Name
Web Parameter Name
PhoneContext
Version 5.2
Valid Range and Description
Defines the Phone Context table.
Format for this ini file parameter table:
[PhoneContext]
FORMAT PhoneContext_Index = PhoneContext_Npi,
PhoneContext_Ton, PhoneContext_Context;
[\PhoneContext]
Where,
Npi = Number Plan
Ton = Number Type
Context = Phone-Context value
When a call is received from the Tel, the NPI and TON are compared
against the table, and the Phone-Context value is used in the outgoing
SIP INVITE message. The same mapping occurs when an INVITE with
a Phone-Context attribute is received. The Phone-Context parameter
appears in the standard SIP headers where a phone number is used
(Request-URI, To, From, Diversion).
For example:
[PhoneContext]
PhoneContext 0 = 0,0,unknown.com
PhoneContext 1 = 1,1,host.com
PhoneContext 2 = 9,1,na.e164.host.com
[\PhoneContext]
Notes:
For an explanation on ini file parameter tables, refer to 'Structure of
ini File Parameter Tables' on page 253.
This parameter can appear up to 20 times.
Several entries with the same NPI-TON or Phone-Context are
allowed. In this scenario, a Tel-to-IP call uses the first match.
Phone-Context '+' is a unique as it doesn't appear in the Request-
URI as a Phone-Context parameter. Instead, it's added as a prefix to
the phone number. The '+' isn't removed from the phone number in
the IP-to-Tel direction.
To configure Phone Context table using the Embedded Web Server,
refer to 'Mapping NPI/TON to Phone-Context' on page 124.
315
6. ini File Configuration
August 2007