AudioCodes Mediant 800B MSBR User Manual page 972

Parameter
Web/EMS: Redundant Routing
Mode
CLI: redundant-routing-m
[RedundantRoutingMode]
[DisconnectCallwithPIifAlt]
[EnableAltMapTel2IP]
Web/EMS: Alternative Routing
Tone Duration [ms]
CLI: alt-rte-tone-duration
[AltRoutingToneDuration]
Reasons for Alternative Tel-to-IP Routing Table
Web: Reasons for Alternative
Routing
EMS: Alt Route Cause Tel to IP
CLI: configure voip > gw
manipulations general-setting
alt-route-cause-tel2ip
[AltRouteCauseTel2IP]
User's Manual
drops the call.
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 = (Default) Internal routing table is used to
locate a redundant route.

[2] Proxy = Proxy list is used to locate a redundant route.
Note: To implement the Redundant Routing Mode mechanism, you
first need to configure the parameter AltRouteCauseTEL2IP
(Reasons for Alternative Routing table).
Defines when the device sends the IP-to-Tel call to an alternative
route (if configured) when it receives an ISDN Q.931 Disconnect
message from the Tel side.

[0] (Default) = The device forwards early media to the IP side if
Disconnect includes PI, and disconnects the call when a
Release message is received. Only after the call is disconnected
does the device send the call to an alternative route.

[1] = The device immediately sends the call to the alternative
route.
For more information, see Alternative Routing upon ISDN
Disconnect on page 420.
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
Defines the duration (in milliseconds) for which the device plays a
tone to the endpoint on each attempt for Tel-to-IP alternative
routing. When the device finishes playing the tone, a new SIP
INVITE message is sent to the new IP 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).
Note: This parameter is applicable only to Tel-to-IP alternative
routing.
This table parameter 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 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 the ini file table parameter is as follows:
[AltRouteCauseTel2IP]
972
Mediant 800B MSBR
Description
Document #: LTRT-12813