AudioCodes E-SBC User Manual page 363

CHAPTER 18 Core Entities
Registration
'Max. Number of Registered Users'
max-reg-users
[SRD_MaxNumOfRegUsers]
'User Security Mode'
block-un-reg-users
[SRD_BlockUnRegUsers]
Parameter
Mediant 1000 Gateway & E-SBC | User's Manual
Description
To configure CAC Profiles, see
Admission Control on page 756.
Defines the maximum number of users belonging to
the SRD that can register with the device.
The default is -1, which means that the number of
allowed user registrations is unlimited.
Note: The parameter is applicable only to the SBC
application.
Defines the blocking (reject) policy for incoming SIP
dialog-initiating requests (e.g., INVITE messages)
from registered and unregistered users belonging to
the SRD.
■ [0] Accept All = (Default) Accepts requests from
registered and unregistered users.
■ [1] Accept Registered Users = Accepts
requests only from users registered with the
device. Requests from users not registered are
rejected.
■ [2] Accept Registered Users from Same
Source = Accepts requests only from registered
users whose source address is the same as that
registered with the device (during the REGISTER
message process). All other requests are
rejected. If the transport protocol is UDP, the
verifies the IP address and port; otherwise, it
verifies only the IP address. The verification is
performed before any of the device's call handling
processes (i.e., Classification, Manipulation and
Routing).
Note:
■ The parameter is applicable only to calls
belonging to User-type IP Groups.
■ The feature is not applicable to REGISTER
requests.
■ The option, Accept Registered Users from Same
Source [2] does not apply to registration
refreshes. These requests are accepted even if
the source address is different to that registered
with the device.
■ When the device rejects a call, it sends a SIP 500
"Server Internal Error" response to the user. In
addition, it reports the rejection (Dialog establish
failure - Classification failure) using the Intrusion
Detection System (IDS) feature (see
IDS Policies), by sending an SNMP trap.
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Configuring Call
Configuring