AudioCodes Mediant 3000, User Manual

Page: 835 / 872

Version 6.6 835 Mediant 3000
User's Manual 53. Configuration Parameters Reference
53.14 SBC Parameters
The SBC parameters are described in the table below.
SBC Parameters
Parameter Description
Web/EMS: Enable SBC
[EnableSBCApplication]
Enables the Session Border Control (SBC) application.

[0] Disable (default)

[1] Enable
Notes:

For this parameter to take effect, a device reset is required.

In addition to enabling this parameter, the number of maximum
SBC/IP-to-IP sessions must be defined in the Software License
Key.
Web: Allow Unclassified
Calls
[AllowUnclassifiedCalls]
Determines whether incoming calls that cannot be classified (i.e.
classification process fails) to a Source IP Group are rejected or
processed.

[0] Reject = Call is rejected if classification fails.

[1] Allow = (Default) If classification fails, the incoming packet is
assigned to a source IP Group (and subsequently processed) as
follows:

The source SRD is determined according to the SIP Interface
to where the SIP-initiating dialog request is sent. The source
IP Group is set to the default IP Group associated with this
SRD.

If the source SRD is ID 0, then source IP Group ID 0 is
chosen. In case of any other SRD, then the first IP Group
associated with this SRD is chosen as the source IP Group or
the call. If no IP Group is associated with this SRD, the call is
rejected.
Web: SBC No Answer
Timeout
[SBCAlertTimeout]
Defines the timeout (in seconds) for SBC outgoing (outbound IP
routing) SIP INVITE messages. If the called IP party does not
answer the call within this user-defined interval, the device
disconnects the session. The device starts the timeout count upon
receipt of a SIP 180 Ringing response from the called party. If no
other SIP response (for example, 200 OK) is received thereafter
within this timeout, the call is released.
The valid range is 0 to 3600 seconds. the default is 600.
Web: SBC Max Forwards
Limit
[SBCMaxForwardsLimit]
Defines the Max-Forwards SIP header value. The Max-Forwards
header is used to limit the number of servers (such as proxies) that
can forward the SIP request. The Max-Forwards value indicates the
remaining number of times this request message is allowed to be
forwarded. This count is decremented by each server that forwards
the request.
This parameter affects the Max-Forwards header in the received
message as follows:

If the received header’s original value is 0, the message is not
passed on and is rejected.

If the received header’s original value is less than this
parameter's value, the header’s value is decremented before
being sent on.