AudioCodes Mediant 800 - Page 1375

CHAPTER72 Configuration Parameters Reference
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
PSTN Fallback is provided by two ports, where one port
is connected to the PBX, for example, and the other to
the PSTN. When PSTN Fallback is triggered, for
example, due to a power outage, the device automatically
connects the two ports using a metallic relay switch. In
such a scenario, calls originating from the PBX are routed
directly to the PSTN (instead of the IP network). For more
information on PSTN Fallback cabling, refer to the
Hardware Installation Manual.
Note:
■ For the parameter to take effect, a device reset is
required.
■ The parameter is applicable only to the Gateway
application and digital interfaces.
■ PSTN Fallback is supported only on specific
hardware configurations and where dual digital ports
are provided. For more information, refer to the
Hardware Installation Manual.
■ The PSTN Fallback feature has no relation to the
PSTN Fallback License Key.
[TrunkLifeLineType] Defines the scenarios upon which the device activates
PSTN Fallback for digital interfaces (BRI). PSTN
Fallback automatically re-routes Tel calls initially
destined to the IP network to the PSTN instead, upon
power outage, or loss of IP connectivity (i.e., no ping),
thereby guaranteeing call continuity.
PSTN Fallback is provided by two ports, where in the
event of a PSTN Fallback, the device automatically
connects the two ports using a metallic relay switch. For
example, if one port is connected to a PBX and the other
port to the PSTN, upon a power outage, calls originating
from the PBX are routed directly to the PSTN (instead of
to the IP network).
■ [0] = (Default) PSTN Fallback is activated only upon
power outage.
■ [2] = PSTN Fallback is activated upon one of the
following:
✔ Power outage
✔ Loss of IP network connectivity (i.e., no ping)
Note:
■ For the parameter to take effect, a device reset is
required.
■ PSTN Fallback is supported only on specific
hardware configurations and where dual digital ports
are provided.
■ For more information on cabling the device for PSTN
Fallback, refer to the Hardware Installation Manual.
[AdminState] Defines the administrative state for all trunks.
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