Call Transfer Parameters - AudioCodes Mediant 3000 User Manual

User's Manual
51.10.5.5

Call Transfer Parameters

The call transfer parameters are described in the table below.
Parameter
Web/EMS: Enable Transfer
[EnableTransfer]
Web: Transfer Prefix
EMS: Logical Prefix For Transferred
Call
[xferPrefix]
Web: Transfer Prefix IP 2 Tel
[XferPrefixIP2Tel]
Web/EMS: Enable Semi-Attended
Transfer
[EnableSemiAttendedTransfer]
Web: Blind
EMS: Blind Transfer
[KeyBlindTransfer]
Version 6.8
Table 51-48: Call Transfer Parameters
Enables the Call Transfer feature.

[0] Disable

[1] Enable = (Default) The device responds to a REFER
message with the Referred-To header to initiate a call
transfer.
Notes:

To use call transfer, the devices at both ends must support
this option.

To use call transfer, set the parameter EnableHold to 1.
Defines the string that is added as a prefix to the
transferred/forwarded called number when the REFER/3xx
message is received.
Notes:

The number manipulation rules apply to the user part of the
Refer-To and/or Contact URI before it is sent in the INVITE
message.

This parameter can be used to apply different manipulation
rules to differentiate transferred / forwarded number from
the originally dialed number.
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 CAS blind transfer modes, i.e.,
LineTransferMode = 1, 2 or 3, and TrunkTransferMode = 1 or
3 (for CAS).
The valid range is a string of up to 9 characters. By default, no
value is defined.
Note: This parameter is also applicable to ISDN Blind
Transfer, according to AT&T Toll Free Transfer Connect
Service (TR 50075) "Courtesy Transfer-Human-No Data". To
support this transfer mode, you need to configure the
parameter XferPrefixIP2Tel to "*8" and the parameter
TrunkTransferMode to 5.
Determines the device behavior when Transfer is initiated
while in Alerting state.

[0] Disable = (Default) Send REFER with the Replaces
header.

[1] Enable = Send CANCEL, and after a 487 response is
received, send REFER without the Replaces header.
Defines the keypad sequence to activate blind transfer for
established Tel-to-IP calls. The Tel user can perform blind
transfer by dialing the KeyBlindTransfer digits, followed by a
transferee destination number.
After the KeyBlindTransfer DTMF digits sequence is dialed,
the current call is put on hold (using a Re-INVITE message), a
dial tone is played to the channel, and then the phone number
collection starts.
857
51. Configuration Parameters Reference
Description
Mediant 3000