SIP User's Manual 448 Document #: LTRT-65415
MediaPack Series
Parameter Description
Web: Transfer Prefix IP 2 Tel
[XferPrefixIP2Tel]
Defines the prefix that is added to the destination number
received in the SIP Refer-To header (for IP-to-Tel calls). This
parameter is applicable to FXO Blind Transfer modes
(LineTransferMode = 1, 2 or 3 ).
The valid range is a string of up to 9 characters. The default is
an empty string.
Web/EMS: Enable Semi-Attended
Transfer
[EnableSemiAttendedTransfer]
Determines the device behavior when Transfer is initiated
while in Alerting state.
 [0] Disable = Send REFER with the Replaces header
(default).
 [1] Enable = Send CANCEL, and after a 487 response is
received, send REFER without the Replaces header.
EMS: Blind Transfer Add Prefix
[KeyBlindTransferAddPrefix]
Determines whether the device adds the Blind Transfer code
(KeyBlindTransfer) to the dialed destination number.
 [0] Disable (default).
 [1] Enable.
EMS: Blind Transfer Disconnect
Timeout
[BlindTransferDisconnectTimeout]
Defines the duration (in milliseconds) for which the device
waits for a disconnection from the Tel side after the Blind
Transfer Code (KeyBlindTransfer) has been identified. When
this timer expires, a SIP REFER message is sent toward the
IP side. If this parameter is set to 0, the REFER message is
immediately sent.
The valid range is 0 to 1,000,000. The default is 0.
10.12.5.7 Three-Way Conferencing Parameters
The three-way conferencing parameters are described in the table below.
Table 10-46: Three-Way Conferencing Parameters
Parameter Description
Web: Enable 3-Way Conference
EMS: Enable 3 Way
[Enable3WayConference]
Enables or disables the 3-Way Conference feature.
 [0] Disable = Disable (default)
 [1] Enable = Enables 3-way conferencing
Note: For this parameter to take effect, a device reset is
required.
Web: 3-Way Conference Mode
EMS: 3 Way Mode
[3WayConferenceMode]
Defines the mode of operation when the 3-Way Conference
feature is used.
 [0] AudioCodes Media Server = The Conference-initiating
INVITE (sent by the device) uses the ConferenceID
concatenated with a unique identifier as the Request-URI.
This same Request-URI is set as the Refer-To header
value in the REFER messages that are sent to the two
remote parties. This conference mode is used when
operating with AudioCodes IPMedia conferencing server.
(Default)
 [1] Non-AudioCodes Media Server = The Conference-
initiating INVITE (sent by the device) uses only the
ConferenceID as the Request-URI. The conference server
sets the Contact header of the 200 OK response to the
actual unique identifier (Conference URI) to be used by the
participants. This Conference URI is then included (by the
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