AudioCodes Mediant 500 MSBR, User Manual

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Version 7.2 677 Mediant 500 MSBR
User's Manual 37. Routing SBC
Alternative Route Options
alt-route-options
[IP2IPRouting_AltRouteO
ptions]
Determines whether this routing rule is the main routing rule or an
alternative routing rule (to the rule defined directly above it in the table).

[0] Route Row = (Default) Main routing rule - the device first attempts
to route the call to this route if the incoming SIP dialog's input
characteristics matches this rule.

[1] Alternative Route Ignore Inputs = If the call cannot be routed to
the main route (Route Row), the call is routed to this alternative route
regardless of the incoming SIP dialog's input characteristics.

[2] Alternative Route Consider Inputs = If the call cannot be routed to
the main route (Route Row), the call is routed to this alternative route
only if the incoming SIP dialog matches this routing rule's input
characteristics.

[3] Group Member Ignore Inputs = This routing rule is a member of
the Forking routing rule. The incoming call is also forked to the
destination of this routing rule. The matching input characteristics of
the routing rule are ignored.

[4] Group Member Consider Inputs = This routing rule is a member
of the Forking routing rule. The incoming call is also forked to the
destination of this routing rule only if the incoming call matches this
rule's input characteristics.
Note:

The alternative routing entry ([1] or [2]) must be defined in the next
consecutive table entry index to the Route Row entry (i.e., directly
below it). For example, if Index 4 is configured as a Route Row,
Index 5 must be configured as the alternative route.

The Forking Group members must be configured in a table row that
is immediately below the main Forking routing rule, or below an
alternative routing rule for the main rule, if configured.

For IP-to-IP alternative routing, configure alternative routing reasons
upon receipt of 4xx, 5xx, and 6xx SIP responses (see Configuring
SIP Response Codes for Alternative Routing Reasons on page 690).
However, if no response, ICMP, or a SIP 408 response is received,
the device attempts to use the alternative route even if no entries are
configured in the Alternative Routing Reasons table.

Multiple alternative route entries can be configured (e.g., Index 1 is
the main route - Route Row - and indices 2 through 4 are configured
as alternative routes).
Match
Source IP Group
src-ip-group-name
[IP2IPRouting_SrcIPGrou
pName]
Defines the IP Group from where the IP call is received (i.e., the IP
Group that sent the SIP dialog). Typically, the IP Group of an incoming
SIP dialog is determined (or classified) using the Classification table
(see Configuring Classification Rules on page 663).
The default is Any (i.e., any IP Group).
Note: The selectable IP Group for the parameter depends on the
assigned Routing Policy (in the 'Routing Policy' parameter in this table).
For more information, see Configuring SBC Routing Policy Rules on
page 692.
Request Type
request-type
[IP2IPRouting_RequestTy
pe]
Defines the SIP dialog request type (SIP Method) of the incoming SIP
dialog.

[0] All (default)

[1] INVITE

[2] REGISTER