AudioCodes Mediant 600 - Page 652

SIP User's Manual 652 Document #: LTRT-83310
Mediant 600 & Mediant 1000
Parameter Description
[WaitForBusyTime]
Defines the time (in msec) that the device waits to detect busy and/or
reorder tones. This feature is used for semi-supervised PBX call
transfers (i.e., the LineTransferMode parameter is set to 2).
The valid value range is 0 to 20000 (i.e., 20 sec). The default is 2000
(i.e., 2 sec).
Web/EMS: Line Transfer
Mode
[LineTransferMode]
Defines the call transfer method used by the device. This parameter
is applicable to
FXO call transfer as well as E1/T1 CAS call transfer if
the TrunkTransferMode_x parameter is set to 3 (CAS Normal) or 1
(CAS NFA).
 [0] None = IP (default).
 [1] Blind = PBX blind transfer:

Analog (FXO): After receiving a SIP REFER message from
the IP side, the device (FXO) sends a hook-flash to the PBX,
dials the digits (that are received in the Refer-
To header), and
then immediately releases the line (i.e., on-hook). The PBX
performs the transfer internally.

E1/T1 CAS: When a SIP REFER message is received, the
device performs a blind transfer, by performing a CAS wink,
waiting a user-defined time (configured by the
WaitForDialTime parameter), dialing the Refer-To number,
and then releasing the call. The PBX performs the transfer
internally.
 [2] Semi Supervised = PBX semi-supervised transfer:

Analog (FXO): After receiving a SIP REFER message from
the IP side, the device sends a hook-flash to the PBX, and
then dials the digits (that are received in the Refer-To
header). If no busy or reorder tones are detected (within the
user-defined interval set by the WaitForBusyTime
parameter), the device completes the call transfer by
releasing the line. If these tones are detected, the transfer is
cancelled, the device sends a SIP NOTIFY message with a
failure reason in the NOTIFY body (such as 486 if busy tone
detected), and generates an additional hook-flash toward the
FXO line to restore connection to the original call.

E1/T1 CAS: The device performs a CAS wink, waits a user-
defined time (configured by the WaitForDialTime parameter),
and then dials the Refer-To number. If during the user-
defined interval set by the WaitForBusyTime parameter, no
busy or reorder tones are detected, the device completes the
call transfer by releasing the line. If during this interval, the
device detects these tones, the transfer operation is
cancelled, the device sends a SIP NOTIFY message with a
failure reason (e.g., 486 if a busy tone is detected), and then
generates an additional wink toward the CAS line to restore
connection with the original call.
 [3] Supervised = PBX Supervised transfer:

Analog (FXO): After receiving a SIP REFER message from
the IP side, the device sends a hook-flash to the PBX, and
then dials the digits (that are received in the Refer-To
header). The device waits for connection of the transferred
call and then completes the call transfer by releasing the line.
If speech is not detected, the transfer is cancelled, the device
sends a SIP NOTIFY message with a failure reason in the
NOTIFY body (such as 486 if busy tone detected) and