Out-of-Service (Busy Out) Parameters
Web/EMS: Enable Busy
Out
[EnableBusyOut]
Enables the Busy Out feature.
 [0] Disable (Default)
 [1] Enable
When Busy Out is enabled and certain scenarios exist, the device does
the following:
The FXS port behaves according to the settings of the
FXSOOSBehavior parameter such as playing a reorder tone when the
phone is off-hooked, or changing the line polarity.
These behaviors are done upon one of the following scenarios:
 The device is physically disconnected from the network (i.e.,
Ethernet cable is disconnected).
 The Ethernet cable is connected, but the device is unable to
communicate with any host. For this scenario, the LAN Watch-Dog
must be activated (i.e., set the EnableLANWatchDog parameter to
1).

Keep-Alive mechanism) and no other alternative route exists to send
the call.
 The IP Connectivity mechanism is enabled (using the
AltRoutingTel2IPEnable parameter) and there is no connectivity to
any destination IP address.
Notes:
 The FXSOOSBehavior parameter determines the behavior of the
FXS endpoints when a Busy Out or Graceful Lock occurs.
 FXO endpoints during Busy Out and Lock are inactive.
 See the LifeLineType parameter for complementary optional
behavior.
Web: Out-Of-Service
Behavior
EMS:FXS OOS Behavior
[FXSOOSBehavior]
Determines the behavior of undefined FXS endpoints and all FXS
endpoints when a Busy Out condition exists.
 [0] None = Normal operation. No response is provided to undefined
endpoints. A dial tone is played to FXS endpoints when a Busy Out
condition exists.
 [1] Reorder Tone = (Default) The device plays a reorder tone to the
connected phone/PBX.
 [2] Polarity Reversal = The device reverses the polarity of the
endpoint marking it unusable (relevant, for example, for PBX DID
lines). This option can't be configured on-the-fly.
 [3] Reorder Tone + Polarity Reversal = Same as 2 and 3 combined.
This option can't be configured on-the-fly.
 [4] Current Disconnect = The device disconnects the current of the
FXS endpoint. This option can't be configured on-the-fly.
Note: This parameter is applicable only to FXS interfaces.
Retransmission Parameters
Web: SIP T1
Retransmission Timer
[msec]
EMS: T1 RTX
Defines the time interval (in msec) between the first transmission of a
SIP message and the first retransmission of the same message.
The default is 500.
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