AudioCodes E-SBC

CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
■ If the received expiry time is greater
than 610 sec, the device reduces the
time to anywhere between 600 sec and
the received expiry time. For example, if
the received expiry time is 700 sec, the
device reduces it to anywhere between
600 and 700 sec.
■ Minimum expiry time:
✔ The minimum expiry time that the
device can reduce REGISTER
messages to is 30 sec and
SUBSCRIBE messages to 120
sec. For example, if the received
expiry time in a REGISTER
message is 35 sec, the device
reduces the time to any value
between 30 and 35 sec (and not by
10 seconds -- between 25 and 35).
✔ If the received expiry time is less
than the minimum (as stated
above), the expiry time remains
unchanged. For example, if the
received expiry time in a
REGISTER message is 18 sec, the
device forwards the message with
this same expiry time (i.e., 18).
Note:
■ This feature does not apply to refresh
REGISTER or SUBSCRIBE
messages.
■ You can configure the device to change
the received expiry time before
forwarding it, using the
SBCUserRegistrationTime parameter.
'SBC Survivability Registration Time'
configure voip > sbc settings >
sbc-surv-rgstr-time
[SBCSurvivabilityRegistrationTime]
Defines the duration of the periodic
registrations between the user and the
device, when the device is in survivability
state (i.e., when REGISTER requests
cannot be forwarded to the proxy and are
terminated by the device). When set to 0,
the device uses the value set by the
SBCUserRegistrationTime parameter for
the device's response.
The valid range is 0 to 2,000,000 seconds.
The default is 0.
configure voip > sbc settings >
sas-notice
[SBCEnableSurvivabilityNotice]
Enables the device to notify Aastra IP
phones that the device is currently
operating in Survivability mode.
■ [0] = Disable
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