SIP User's Manual 720 Document #: LTRT-12804
Mediant 800 MSBG
Parameter Description
Notes:
For Analog interfaces: The FXSOOSBehavior parameter determines
the behavior of the FXS endpoints when a Busy Out or Graceful
Lock occurs.
For Analog interfaces: FXO endpoints during Busy Out and Lock are
inactive.
For Analog interfaces: See the LifeLineType parameter for
complementary optional behavior.
For Digital interfaces: The Busy Out behavior varies between
different protocol types.
For Digital interfaces: The Busy-Out condition can also be applied to
a specific Hunt Group. If there is no connectivity to the Serving IP
Group of a specific Hunt Group (defined in the 'Hunt Group Settings'
table), all the physical trunks pertaining to that Hunt Group are set to
the Busy-Out condition. Each trunk uses the proper Out-Of-Service
method according to the selected ISDN/CAS variant.
For Digital interfaces: You can use the parameter
DigitalOOSBehavior to select the method for setting digital trunks to
Out-Of-Service.
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 = The device plays a reorder tone to the connected
phone/PBX (default).
[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
[SipT1Rtx]
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 and is multiplied by two until
SipT2Rtx. For example (assuming that 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.
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