AudioCodes Mediant 600 User Manual page 823

User's Manual
Parameter
Web: SAS Proxy Set
EMS: Proxy Set
[SASProxySet]
Web: Redundant SAS
Proxy Set
EMS: Redundant Proxy
Set
[RedundantSASProxySe
t]
Web/EMS: SAS Block
Unregistered Users
[SASBlockUnRegUsers]
[SASEnableContactRepl
ace]
Web: SAS Survivability
Mode
EMS: Survivability Mode
[SASSurvivabilityMode]
Version 6.6

[0] Disable (default)

[1] Enable
The Record-Route header is inserted in a request by a SAS proxy to
force future requests in the dialog session to be routed through the
SAS agent. Each traversed proxy in the path can insert this header,
causing all future dialogs in the session to pass through it as well.
When this feature is enabled, the SIP Record-Route header includes
the URI "lr" parameter, indicating loose routing, for example:
Record-Route: <sip:server10.biloxi.com;lr>
Defines the Proxy Set (index number) used in SAS Normal mode to
forward REGISTER and INVITE requests from users that are served
by the SAS application.
The valid range is 0 to 5. The default is 0 (i.e., default Proxy Set).
Defines the Proxy Set (index number) used in SAS Emergency mode
for fallback when the user is not found in the Registered Users
database. Each time a new SIP request arrives, the SAS application
checks whether the user is listed in the registration database. If the
user is located in the database, the request is sent to the user. If the
user is not found, the request is forwarded to the next redundant SAS
defined in the Redundant SAS Proxy Set. If that SAS Proxy IP appears
in the Via header of the request, it is not forwarded (thereby,
preventing loops in the request's course). If no such redundant SAS
exists, the SAS sends the request to its default gateway (configured by
the parameter SASDefaultGatewayIP).
The valid range is -1 to 5. The default is -1 (i.e., no redundant Proxy
Set).
Determines whether the device rejects SIP INVITE requests received
from unregistered SAS users. This applies to SAS Normal and
Emergency modes.

[0] Un-Block = (Default) Allow INVITE from unregistered SAS
users.

[1] Block = Reject dialog-establishment requests from un-registered
SAS users.
Enables the device to change the SIP Contact header so that it points
to the SAS host and therefore, the top-most SIP Via header and the
Contact header point to the same host.

[0] (default) = Disable - when relaying requests, the SAS agent
adds a new Via header (with the SAS IP address) as the top-most
Via header and retains the original Contact header. Thus, the top-
most Via header and the Contact header point to different hosts.

[1] = Enable - the device changes the Contact header so that it
points to the SAS host and therefore, the top-most Via header and
the Contact header point to the same host.
Note: Operating in this mode causes all incoming dialog requests to
traverse the SAS, which may cause load problems.
Determines the Survivability mode used by the SAS application.

[0] Standard = (Default) Incoming INVITE and REGISTER requests
are forwarded to the defined Proxy list of SASProxySet in Normal
mode and handled by the SAS application in Emergency mode.

[1] Always Emergency = The SAS application does not use Keep-
823
52. Configuration Parameters Reference
Description
Mediant 600 & Mediant 1000