AudioCodes Mediant 800B User Manual page 908

Parameter
SMDI Parameters
User's Manual

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 generates an additional hook-flash toward the FXO line
to restore connection to the original call.

E1/T1 CAS: The device performs a supervised transfer to
the PBX. The device performs a CAS wink, waits a user-
defined time (configured by the WaitForDialTime
parameter), and then dials the Refer-To number. The
device completes the call transfer by releasing the line only
after detection of the transferred party answer. To enable
answer supervision, you also need to do the following:
1) Enable voice detection (i.e., set the
EnableVoiceDetection parameter to 1).
2) Set the EnableDSPIPMDetectors parameter to 1.
3) Install the IPMDetector DSP option Feature License
Key.
908
Mediant 800B Gateway and E-SBC
Description
Document #: LTRT-10620