AudioCodes Mediant 600 User Manual page 218

Parameter
Routing Mode
[IPGroup_RoutingMode]
SIP Re-Routing Mode
[IPGroup_SIPReRouting
Mode]
Enable Survivability
[IPGroup_EnableSurviva
bility]
User's Manual
Routing Table on page 323) as the Request-URI host name in
outgoing INVITE messages, instead of the value configured in the
'SIP Group Name' field.
Note: This parameter is applicable only to Server-type IP Groups.
Defines the routing mode for outgoing SIP INVITE messages.

[-1] Not Configured = (Default) The routing is according to the
selected Serving IP Group. If no Serving IP Group is selected, the
device routes the call according to the Outbound IP Routing Table
(see Configuring Outbound IP Routing Table on page 323).

[0] Routing Table = The device routes the call according to the
Outbound IP Routing Table.

[1] Serving IP Group = The device sends the SIP INVITE to the
selected Serving IP Group. If no Serving IP Group is selected, the
default IP Group is used. If the Proxy server(s) associated with the
destination IP Group is not alive, the device uses the Outbound IP
Routing Table (if the parameter IsFallbackUsed is set 1, i.e., fallback
enabled - see 'Configuring Proxy and Registration Parameters' on
page 228).

[2] Request-URI = The device sends the SIP INVITE to the IP
address according to the received SIP Request-URI host name.
Notes:

This parameter is applicable only to the IP-to-IP application.

This parameter is applicable only to Server-type IP Groups.
Defines 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).

[-1] Not Configured (Default)

[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.

[1] Proxy = Sends a new INVITE to the Proxy. This is 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.
Defines how the device handles registration messages and whether
Survivability mode is enabled for User-type IP Groups.

[0] Disable (default).

[1] Enable if Necessary = Survivability mode is enabled only if the
Serving IP Group is unavailable. The device saves in its Registration
database the registration messages sent by the clients (e.g., IP
218
Mediant 600 & Mediant 1000
Description
Document #: LTRT-83313