AudioCodes mediapack MP-500 User Manual page 156

Parameter
SIP Re-Routing Mode
[IPGroup_SIPReRoutingMode]
Enable Survivability
[IPGroup_EnableSurvivability]
SIP User's Manual
page 147).
[2] Request-URI = The device sends the SIP INVITE to the
IP address according to the received SIP Request-URI host
name.
Note: This field is available only if the SBC application is
enabled.
Determines the routing mode after a call redirection (i.e., a 3xx
SIP response is received) or transfer (i.e., a SIP REFER
request is received).
[0] Standard = INVITE messages that are generated as a
result of Transfer or Redirect are sent directly to the URI,
according to the Refer-To header in the REFER message
or Contact header in the 3xx response (default).
[1] Proxy = Sends a new INVITE to the Proxy. Note:
Applicable only if a Proxy server is used and the parameter
AlwaysSendtoProxy is set to 0.
[2] Routing Table = Uses the Routing table to locate the
destination and then sends a new INVITE to this
destination.
Notes:
When this parameter is set to [1] and the INVITE sent to the
Proxy fails, the device re-routes the call according to the
Standard mode [0].
When this parameter is set to [2] and the INVITE fails, the
device re-routes the call according to the Standard mode
[0]. If DNS resolution fails, the device attempts to route the
call to the Proxy. If routing to the Proxy also fails, the
Redirect / Transfer request is rejected.
When this parameter is set to [2], the XferPrefix parameter
can be used to define different routing rules for redirected
calls.
This parameter is ignored if the parameter
AlwaysSendToProxy is set to 1.
Determines whether Survivability mode is enabled for USER-
type IP Groups.
Disable (default).
Enable = Survivability mode is enabled. The device records
in its local database the registration messages sent by the
clients belonging to the USER-type IP Group. If
communication with the Serving IP Group (e.g., IP-PBX)
fails, the USER-type IP Group enters into Survivability
mode in which the device uses its database for routing calls
between the clients (e.g., IP phones) of the USER-type IP
Group. The RTP packets between the IP phones in
Survivability mode always traverse through the device. In
Survivability mode, the device is capable of receiving new
registrations. When the Serving IP Group is available again,
the device returns to normal mode, sending INVITE and
REGISTER messages to the Serving IP Group.
Notes:
This field is available only if the SBC application is enabled.
156
MP-500 MSBG
Description
Document #: LTRT-12801