AudioCodes Mediant 4000 SBC User Manual page 890

Parameter
SBC No Answer Timeout
configure voip > sbc settings > sbc-no-arelt-
timeout
[SBCAlertTimeout]
configure voip > sbc settings > num-of-
subscribes
[NumOfSubscribes]
configure voip > sbc settings > sbc-dialog-
subsc-route-mode
[SBCInDialogSubscribeRouteMode]
configure voip > sbc settings > sbc-max-fwd-
limit
[SBCMaxForwardsLimit]
User's Manual
Description
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.
Defines the maximum number of concurrent SIP
SUBSCRIBE sessions permitted on the device.
The valid value is any value between 0 and the
maximum supported SUBSCRIBE sessions. When
set to -1, the device uses the default value. For more
information, contact your AudioCodes sales
representative.
Note:

For the parameter to take effect, a device reset is
required.

The maximum number of SUBSCRIBE sessions
can be increased by reducing the maximum
number of SBC channels in the License Key. For
every reduced SBC session, the device gains two
SUBSCRIBE sessions.
Enables the device to route in-dialog, refresh SIP
SUBSCRIBE requests to the "working" (has
connectivity) proxy.

[0] = (Default) Disable – the device sends in-
dialog, refresh SUBSCRIBES according to the
address in the Contact header of the 200 OK
response received from the proxy to which the
initial SUBSCRIBE was sent (as per the SIP
standard).

[1] = Enable – the device routes in-dialog, refresh
SUBSCRIBES to the "working" proxy (regardless
of the Contact header). The "working" proxy
(address) is determined by the device's keep-alive
mechanism for the Proxy Set that was used to
route the initial SUBSCRIBE.
Note: For this feature to be functional, ensure the
following:

Keep-alive mechanism is enabled for the Proxy
Set ('Proxy Keep-Alive' parameter is set to any
value other than Disable).

Load-balancing between proxies is disabled
('Proxy Load Balancing Method' parameter is set to
Disable).
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
890
Mediant 4000 SBC
Document #: LTRT-40203