Version 6.2 163 February 2011
SIP User's Manual 3. Web-Based Management
3.3.2.9.2 Configuring IP2IP Routing Table (SAS)
The 'IP2IP Routing Table' page allows you to configure up to 120 SAS routing rules (for
Normal and Emergency modes). The device routes the SAS call (received SIP INVITE
message) once a rule in this table is matched. If the characteristics of an incoming call do
not match the first rule, the call characteristics is then compared to the settings of the
second rule, and so on until a matching rule is located. If no rule is matched, the call is
rejected.
When SAS receives a SIP INVITE request from a proxy server, the following routing logic
is performed:
a. Sends the request according to rules configured in the IP2IP Routing table.
b. If no matching routing rule exists, the device sends the request according to its SAS
registration database.
c. If no routing rule is located in the database, the device sends the request according to
the Request-URI header.
Note: The IP2IP Routing table can also be configured using the ini file table
parameter IP2IPRouting (see SIP Configuration Parameters).
¾ To configure the IP2IP Routing table for SAS:
1. In the 'SAS Configuration' page (see ''Configuring Stand-Alone Survivability'' on page
161), cli
ck the SAS Routing Table button; the 'IP2IP Routing Table' page
appears.
2. Add an entry and then configure it according to the table below.
3. Click the Apply button to save your changes.
4. To save the changes to flash memory, see ''Saving Configuration'' on page 169.
Table 3-27:
SAS IP2IP Routing Table Parameters
Parameter Description
Matching Characteristics
Source Username Prefix
[IP2IPRouting_SrcUsernamePrefix]
The prefix of the user part of the incoming INVITE’s source
URI (usually the From URI).
The default is "*".
Note: The prefix can be a single digit or a range of digits.
For available notations, see ''Dialing Plan Notation for
Routing and Manipulation'' on page 228.
Source Host
[IP2IPRouting_SrcHost]
The host part of the incoming SIP INVITE’s source URI
(usually the From URI). If this rule is not required, leave the
field empty. To denote any host name, use the asterisk (*)
symbol.
The default is "*".
Destination Username Prefix
[IP2IPRouting_DestUsernamePrefix]
The prefix of the incoming SIP INVITE's destination URI
(usually the Request URI) user part. If this rule is not
required, leave the field empty. To denote any prefix, use the
asterisk (*) symbol.
The default is "*".
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