AudioCodes Mediant 600 - Alternative Routing Parameters

SIP User's Manual 744 Document #: LTRT-83310
Mediant 600 & Mediant 1000
A.12.15 Alternative Routing Parameters
The alternative routing parameters are described in the table below.
Table A-69: Alternative Routing Parameters
Parameter Description
Web/EMS: Redundant Routing
Mode
[RedundantRoutingMode]
Determines the type of redundant routing mechanism when a
call can’t be completed using the main route.
 [0] Disable = No redundant routing is used. If the call can’t
be completed using the main route (using the active Proxy
or the first matching rule in the Routing table), the call is
disconnected.
 [1] Routing Table = Internal routing table is used to locate a
redundant route (default).
 [2] Proxy = Proxy list is used to locate a redundant route.
Note: To implement the Redundant Routing Mode mechansim,
you first need to configure the parameter
AltRouteCauseTEL2IP (Reasons for Alternative Routing table).
Web: Enable Alt Routing Tel to IP
EMS: Enable Alternative Routing
[AltRoutingTel2IPEnable]
Enables the Alternative Routing feature for Tel-to-IP calls.
 [0] Disable = Disables the Alternative Routing feature
(default).
 [1] Enable = Enables the Alternative Routing feature.
 [2] Status Only = The Alternative Routing feature is
disabled, but read-only information on the QoS of the
destination IP addresses is provided.
[EnableAltMapTel2IP]
Enables different Tel-to-IP destination number manipulation
rules per routing rule when several (up to three) Tel-to-IP
routing rules are defined and if alternative routing using release
causes is used. For example, if an INVITE message for a Tel-
to-IP call is returned with a SIP 404 Not Found response, the
call can be re-sent to a different destination number (as defined
using the parameter NumberMapTel2IP).
 [0] = Disable (default)
 [1] = Enable
Web/EMS: Alternative Routing
Tone Duration [ms]
[AltRoutingToneDuration]
Defines the duration (in milliseconds) for which the device plays
a tone to the endpoint on each Alternative Routing attempt.
When the device finishes playing the tone, a new SIP INVITE
message is sent to the new destination. The tone played is the
Call Forward Tone (Tone Type #25 in the CPT file).
The valid range is 0 to 20,000. The default is 0 (i.e., no tone is
played).
Reasons for Alternative Tel-to-IP Routing Table
Web: Reasons for Alternative
Routing
EMS: Alt Route Cause Tel to IP
[AltRouteCauseTel2IP]
This parameter table configures SIP call failure reason values
received from the IP side. If an IP call is released as a result of
one of these reasons, the device attempts to locate an
alternative IP route (address) for the call in the Outbound IP
Routing Table (if a Proxy is not used) or used as a redundant
Proxy (you need to set the parameter RedundantRoutingMode
to 2). The release reason for Tel-to-IP calls is provided in SIP
4xx, 5xx, and 6xx response codes.
The format of this parameter is as follows:
[AltRouteCauseTel2IP]