AudioCodes E-SBC - Page 459

CHAPTER19 Coders and Profiles
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
The valid value is 0 to 2,000,000. If configured to 0, the
Expires header's value received in the user’s REGISTER
request remains unchanged. By default, no value is defined
(-1).
Note: If the parameter is not configured, the registration
time is according to the global parameter
SBCUserRegistrationTime or IP Profile parameter
IpProfile_SBCUserRegistrationTime.
'NAT TCP Registration Time'
sbc-usr-tcp-nat-reg-
time
[IpProfile_
SBCUserBehindTcpNATRegist
rationTime]
Defines the registration time (in seconds) that the device
includes in register responses, in response to SIP
REGISTER requests from users belonging to the SIP
entity associated with the IP Profile.
The parameter applies only to users that are located behind
NAT and whose communication type is TCP. The
registration time is inserted in the Expires header in the
outgoing response sent to the user.
The Expires header determines the lifespan of the
registration. For example, a value of 3600 means that the
registration will timeout in one hour, unless the user sends
a refresh REGISTER before the timeout. Upon timeout, the
device removes the user’s details from the registration
database, and the user will not be able to make or receive
calls through the device.
The valid value is 0 to 2,000,000. If configured to 0, the
Expires header's value received in the user’s REGISTER
request remains unchanged. By default, no value is defined
(-1).
Note: If the parameter is not configured, the registration
time is according to the global parameter
SBCUserRegistrationTime or IP Profile parameter
IpProfile_SBCUserRegistrationTime.
SBC Forward and Transfer
'Remote REFER Mode'
sbc-rmt-refer-behavior
[IpProfile_
SBCRemoteReferBehavior]
Defines the device's handling of SIP REFER requests for
the IP entity (transferee - call party that is transfered to the
transfer target) associated with the IP Profile.
■ [0] Regular = (Default) SIP Refer-To header value is
unchanged and the device forwards the REFER
message as is. However, if you configure the 'Remote
Replaces Mode' parameter (see below) to any value
other than Keep as is, the device may modify the URI
of the Refer-To header to reflect the call identifiers of
the leg.
■ [1] Database URL = SIP Refer-To header value is
changed so that the re-routed INVITE is sent through
the device:
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