SIP User's Manual 122 Document #: LTRT-65412
MP-11x & MP-124
3.3.4.6.2 Configuring the IP2IP Routing Table (SAS)
The 'IP2IP Routing Table' page configures SAS routing when SAS is in Emergency mode.
Up to 120 SAS routing rules can be defined. 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 does 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.
Notes:
• The 'SAS Configuration' page appears only if you have enabled the SAS
application (refer to ''Enabling Applications'' on page 91).
• For a detailed explanation on SAS, refer to ''Stand-Alone Survivability
(SAS) Feature'' on page 384.
• For a specific SAS routing rule to be effective, the incoming SIP INVITE
message must match the characteristics configured for that rule.
• The IP2IP Routing table can also be configured using the ini file table
parameter IP2IPRouting (refer to ''SIP Configuration Parameters'' on
page 252).
¾ To configure the IP2IP Routing table for SAS:
1. In the 'SAS Configuration' page (refer to ''Configuring Stand-Alone Survivability
Parameters'' on page 120),
click the SAS Routing Table button; the 'IP2IP
Routing Table' page appears.
Figure 3-73: IP2IP Routing Page
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, refer to ''Saving Configuration'' on page 167.
Table 3-20:
SAS 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 "*".
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 "*".
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