User's Manual  1184  Document #: LTRT-10632 
 
  Mediant 800B Gateway & E-SBC 
Parameter  Description 
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 (suc
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 
SMDI Parameters 
Enable SMDI 
configure voip > gateway voice-mail-
setting > enable-smdi 
[SMDI] 
Enables Simplified Message Desk Interface (SMDI) interface 
on the device. 
  [0] Disable = (Default) Normal serial 
  [1] Enable (Bellcore) 
  [2] Ericsson MD-110 
  [3] NEC (ICS) 
Note: 
  For the parameter to take effect, a device reset is 
required. 
  When the RS-232 connection is used for SMDI 
messages (Serial SMDI), it cannot be used for other 
applications, for example, to access the Command Line 
Interface (CLI). 
SMDI Timeout  Defines the time (in msec) that the device waits for an SMDI