AudioCodes Mediant 800B MSBR User Manual page 847

Mediant 800B MSBR
Parameter
Web: Out-Of-Service
Behavior
EMS:FXS OOS Behavior
CLI: oos-behavior
[FXSOOSBehavior]
Retransmission Parameters
Web: SIP T1
Retransmission Timer
[msec]
EMS: T1 RTX
CLI: t1-re-tx-time
[SipT1Rtx]
Web: SIP T2
Retransmission Timer
[msec]
EMS: T2 RTX
CLI: t2-re-tx-time
[SipT2Rtx]
Web: SIP Maximum RTX
EMS: Max RTX
CLI: sip-max-rtx
[SIPMaxRtx]
Version 6.8

This parameter is applicable only to digital interfaces.

To configure the method for setting Out-of-Service state per trunk,
use the DigitalOOSBehaviorForTrunk_x parameter.

To configure the timeout interval (in seconds) for Out-of-Service
graceful shutdown mode for busy trunks if communication fails with
a Proxy server (or Proxy Set), use the GracefulBusyOutTimeout
parameter.
Determines the behavior of FXS endpoints when a Busy Out condition
exists.

[0] None = Silence is heard when the FXS endpoint goes off-hook.

[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 making it unusable (relevant, for example, for PBX DID
lines).

[3] Reorder Tone + Polarity Reversal = Same as options [1] and [2].

[4] Current Disconnect = The device disconnects the current to the
FXS endpoint.
Notes:

A device reset is required for this parameter to take effect when it is
set to [2], [3], or [4].

This parameter is applicable only to FXS interfaces.
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.
Note: The time interval between subsequent retransmissions of the
same SIP message starts with SipT1Rtx. For INVITE requests, it is
multiplied by two for each new retransmitted message. For all other
SIP messages, it is multiplied by two until SipT2Rtx. For example,
assuming SipT1Rtx = 500 and SipT2Rtx = 4000:

The first retransmission is sent after 500 msec.

The second retransmission is sent after 1000 (2*500) msec.

The third retransmission is sent after 2000 (2*1000) msec.

The fourth retransmission and subsequent retransmissions until
SIPMaxRtx are sent after 4000 (2*2000) msec.
Defines the maximum interval (in msec) between retransmissions of
SIP messages (except for INVITE requests).
The default is 4000.
Note: The time interval between subsequent retransmissions of the
same SIP message starts with SipT1Rtx and is multiplied by two until
SipT2Rtx.
Defines the maximum number of UDP transmissions of SIP messages
(first transmission plus retransmissions).
The range is 1 to 30. The default is 7.
847
67. Configuration Parameters Reference
Description
Mediant 800B MSBR