AudioCodes Mediant 500L - Page 1157

Version 7.2 1157 Mediant 500L Gateway & E-SBC
User's Manual 69. Configuration Parameters Reference
Parameter Description
started when a Q.931 Alert message is received. The timer is
stopped when a Q.931 Connect/Disconnect message is received
from the other side. If no Connect or Disconnect message is
received within the duration of T301, the call is cleared.
The valid range is 0 to 2400. The default is 0 (i.e., the default T301
timer value - 180 seconds - is used). If set to any value other than
0, it overrides the timer with this value.
Note:
 For the parameter to take effect, a device reset is required.
 The parameter is applicable only to the QSIG variant.
Trace Level
configure voip > interface e1-
t1|bri > trace-level
[TraceLevel]
Defines the trace level:
 [0] No Trace (default)
 [1] Full ISDN Trace
 [2] Layer 3 ISDN Trace
 [3] Only ISDN Q.931 Messages Trace
 [4] Layer 3 ISDN No Duplication Trace
[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, a LAN disconnection, 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.
 [0] = Lock the trunk; stops trunk traffic to configure the trunk
protocol type.
 [1] = Shutting down (read only).
 [2] = (Default) Unlock the trunk; enables trunk traffic.
Note:
 For the parameter to take effect, a device reset is required.
 When the device is locked from the Web interface, the
parameter changes to 0.
 To define the administrative state per trunk, use the
TrunkAdministrativeState parameter.