User`s manual

SIP User's Manual 5. Web Management
Version 5.0 97 December 2006
4. Configure the Phone Context table according to Table 5-15.
5. Click the Submit button to save your changes.
6. To save the changes so they are available after a power fail, refer to Section 5.10.2 on
page 205.
Notes:
• Several rows with the same NPI-TON or Phone-Context are allowed. In
such a scenario, a Tel-to-IP call uses the first match.
• Phone-Context '+' is a unique case 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.
Table 5-15: Phone-Context Parameters
Parameter Description
Add Phone Context As Prefix
[AddPhoneContextAsPrefix]
Determines whether or not the received Phone-Context parameter is added as a
prefix to the outgoing ISDN SETUP Called and Calling numbers.
Valid options include:
0 = Disable (default).
1 = Enable.
NPI Select the Number Plan assigned to this entry.
You can select the following:
0 = Unknown (default)
1 = E.164 Public
9 = Private
TON Select the Number Type assigned to this entry.
 If you selected Unknown as the NPI, you can select Unknown (0)
 If you selected Private as the NPI, you can select Unknown (0), Level 2
Regional (1), Level 1 Regional (2), PSTN Specific (3), or Level 0 Regional
(Local) (4).
 If you selected E.164 Public as the NPI, you can select Unknown (0),
International (1), National (2), Network Specific (3), Subscriber (4), or
Abbreviated (6).
Phone Context The Phone-Context SIP URI parameter.