AudioCodes Mediant 500L MSBR

User's Manual 872 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
down or brings it up. For a detailed description, see option [5] of
the DigitalOOSBehaviorForTrunk_x parameter (per trunk setting).
Notes:
 When using the parameter to configure out-of-service behavior
for all trunks, you must reset the device for the settings to take
effect.
 If the ISDN variant does not support the configured out-of-service
option of the parameter, the device sets the parameter to Default
[0].
Web: Out-Of-Service Behavior
EMS:FXS OOS Behavior
CLI: oos-behavior
[FXSOOSBehavior]
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.
Retransmission Parameters
Web: SIP T1
Retransmission Timer
[msec]
EMS: T1 RTX
CLI: t1-re-tx-time
[SipT1Rtx]
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.
Web: SIP T2
Retransmission Timer
[msec]
EMS: T2 RTX
CLI: t2-re-tx-time
[SipT2Rtx]
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.
Web: SIP Maximum RTX
EMS: Max RTX
CLI: sip-max-rtx
[SIPMaxRtx]
Defines the maximum number of UDP transmissions of SIP messages
(first transmission plus retransmissions).
The range is 1 to 30. The default is 7.