Version 6.2 431 February 2011
SIP User's Manual 10. Configuration Parameters Reference
10.12.4 Voice Mail Parameters
The voice mail parameters are described in the table below. For detailed information on the
Voice Mail application, refer to the CPE Configuration Guide for Voice Mail.
Note: Voice Mail is applicable only to FXO interfaces.
Table 10-39: Voice Mail Parameters
Parameter Description
Web/EMS: Voice Mail Interface
[VoiceMailInterface]
Enables the device's Voice Mail application and
determines the communication method used between the
PBX and the device.
 [0] None (default)
 [1] DTMF
 [2] SMDI
Note: To enable voice mail per Hunt Group, you can use a
Tel Profile ID (using the TelProfile parameter) that is
configured with voice mail interface enabled. This
eliminates the phenomenon of call delay on lines not
implementing voice mail when voice mail is enabled using
this global parameter.
Web: Enable VoiceMail URI
EMS: Enable VMURI
[EnableVMURI]
Enables or disables the interworking of target and cause
for redirection from Tel to IP and vice versa, according to
RFC 4468.
 [0] Disable = Disable (default).
 [1] Enable = Enable
Web/EMS: Line Transfer Mode
[LineTransferMode]
Determines the call transfer method used by the device.
 [0] None = IP (default).
 [1] Blind = PBX blind transfer. After receiving a REFER
message from the IP side, the FXO sends a hook-flash
to the PBX, dials the digits (that are received in the
Refer-To header), and then immediately drops the line
(on-hook). The PBX performs the transfer internally.
 [2] Semi Supervised = PBX Semi-Supervised transfer.
After receiving a REFER message from the IP side, the
FXO 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
approximately 2 seconds), the device completes the
call transfer by releasing the line; otherwise, 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 towards the FXO line to restore
connection to the original call.
 [3] Supervised = PBX Supervised transfer. After
receiving a REFER message from the IP side, the FXO
sends a hook-flash to the PBX, and then dials the digits
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