AudioCodes E-SBC User Manual

CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
'Registration Retry Time'
configure voip > sip-
definition proxy-and-
registration >
registration-retry-time
[RegistrationRetryTime]
Defines the time interval (in seconds) after which a
registration request is re-sent if registration fails with a
4xx response or if there is no response from the
Proxy/Registrar server.
The default is 30 seconds. The range is 10 to 3600.
Note: Registration retry time can also be configured
with the MaxRegistrationBackoffTime parameter.
'Max Registration Backoff Time'
configure voip > sip-
definition proxy-and-
registration > max-
registration-backoff-time
[MaxRegistrationBackoffTime]
Defines a dynamic time-to-wait interval before the
device attempts to register the SIP entity again after a
registration failure. The parameter is applicable only to
registrations initiated by the device on behalf of SIP
entities (for example, User Info, Accounts, Endpoints or
the device itself) with a SIP proxy server (registrar).
The valid value is 0 to 3000000 (i.e., 3 million seconds).
The default is 0 (i.e., disabled).
In contrast to the RegistrationRetryTime parameter,
which defines a fixed time to wait between registration
attempts due to registration failure, this parameter
configures the device to increase the time-to-wait
interval for each subsequent registration attempt (per
RFC 5626, Section 4.5) for a specific registration flow.
In other words, the interval changes between
registration attempts.
The parameter operates together with the
RegistrationRetryTime parameter. When the
MaxRegistrationBackoffTime parameter is configured,
the wait-time before another registration attempt
increases after each failed registration (until it reaches
the maximum value specified by the parameter).
The device uses the following algorithm to calculate the
incremental augmented wait-time between each
registration attempt:
Wait Time = min (max-time, (base-time *
(2 ^ consecutive-failures)))
Where:
■ max-time is the value configured by
MaxRegistrationBackoffTime
■ base-time is the value configured by
RegistrationRetryTime
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AudioCodes E-SBC Specifications

General

Brand	AudioCodes
Model	E-SBC
Category	Gateway
Language	English