AudioCodes Mediant 500L MSBR

User's Manual 282 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
addresses, which is necessary for calls between LAN and WAN.
 When the global parameter SBCDirectMedia is disabled, Media
Anchoring can only be enabled for calls between endpoints
belonging to the same SRD.
 For more information on Media Anchoring, see No Media
Anchoring (Anti-Tromboning) on page 522.
Block Unregistered Users
CLI: block-un-reg-users
[SRD_BlockUnRegUsers]
Determines whether the device blocks (rejects) incoming calls
(INVITE requests) from unregistered users (pertaining to User-type
IP Groups) for the SRD.
 [0] No = Calls from unregistered users are not blocked (default).
 [1] Yes = Blocks calls from unregistered users.
Note: When the call is blocked, the device sends a SIP 500 "Server
Internal Error" response to the remote end.
Max. Number of Registered
Users
CLI: max-reg-users
[SRD_MaxNumOfRegUsers]
Maximum number of users belonging to this SRD that can register
with the device. By default, no limitation exists for registered users
Enable Un-Authenticated
Registrations
CLI: enable-un-auth-registrs
[SRD_EnableUnAuthenticated
Registrations]
Enables the device to accept REGISTER requests and register them
in its registration database from new users that have not been
authenticated by a proxy/registrar server (due to proxy down) and
thus, re-routed to a User-type IP Group.
In normal operation scenarios in which the proxy server is available,
the device forwards the REGISTER request to the proxy and if
authenticated by the proxy (i.e., device receives a success
response), the device adds the user to its registration database. The
routing to the proxy is according to the SBC IP-to-IP Routing table
where the destination is the proxy’s IP Group. However, when the
proxy is unavailable (e.g., due to network connectivity loss), the
device
can accept REGISTER requests from new users if a matching
alternative routing rule exists in the SBC IP-to-IP Routing table
where the destination is the user’s User-type IP Group (i.e., call
survivability scenarios) and if the parameter is enabled.
 [0] Disable = The device rejects REGISTER requests from new
users that were not authenticated by a proxy server.
 [1] Enable = (Default) The device accepts REGISTER requests
from new users even if they were not authenticated by a proxy
server, and registers the user in its registration database.
Note: Regardless of the parameter, the device always accepts
registration refreshes from users that are already registered in its
database.