User's Manual 1284 Document #: LTRT-10632
Mediant 800B Gateway & E-SBC
Parameter Description
[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).
Disconnect Call With PI If Alt
[DisconnectCallwithPIifAlt]
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] Disable = (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] Enable = The device immediately sends the call to the
alternative route.
For more information, see Alternative Routing upon ISDN Disconnect
on page 552.
Note: The parameter is applicable only to digital interfaces.
configure voip > gateway
manipulation settings > alt-
map-tel-to-ip
[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)
= Enable
[TR104FXOSwitchover] Enables the device to automatically switch the destination of an FXS
call from the FXO (PSTN) to the IP (SIP Trunk) when the PSTN
disconnects the FXS subscriber.
[0] = (Default) Disable
[1] = Enable
For more information, see Alternative Routing from FXO to IP on
page 553.
Alternative Routing Tone
Duration
configure voip > gateway
routing settings > alt-rte-tone-
duration
[AltRoutingToneDuration]
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:
The parameter is applicable only to FXS or FXO interfaces.
The parameter is applicable only to Tel-to-IP alternative routing
based on SIP responses (see Alternative Routing Based on SIP
Responses on page 544).
Reasons for Alternative Tel-to-IP Routing Table
Reasons for Alternative
Routing
configure voip > gateway
routing alt-route-cause-tel2ip
Defines 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 Tel-to-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
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