Installation & Operation Manual 730 Document # LTRT-92224
Mediant 8000
Parameter
Name
Type
Provision
ing Type
Description
SBC Refer
Behavior
Enum
Regular,UseDB
Instant Defines how the device handles
REFER requests.
[0] = Refer To header is
unchanged (default).
[1] = Uses the database for
Refer To as described below.
When enabled, the device
handles REFERs as follows:
Before passing on the REFER
request, the device changes the
host part to the device's IP
address and adds a special prefix
("T~&R_") to the Contact user
part.
The incoming INVITE is identified
as a REFER-resultant INVITE
according to the special prefix.
The device replaces the host part
(in the Request-URI) with the host
from the REFER contact. The
prefix ("T~&R_") remains in the
user part for regular classification,
manipulation, and routing. The
special prefix can be used for
specific routing rules for REFER-
resultant INVITES.
The prefix is removed before the
resultant INVITE is sent to the
destination.
SBC Xfer
Prefix
String
Up to 255 chars
Instant When the SBCReferBehavior is
set to 1, the device, while
interworking the SIP REFER
message, adds the prefix "T~&R-"
to the user part of the URI in the
Refer-To header. After this, the
device can receive an INVITE with
such a prefix (the INVITE is sent
by the UA that receives the
REFER message or 302
response). If the device receives
an INVITE with such a prefix, it
replaces the prefix with the value
defined for the SBCXferPrefix
parameter.
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