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DSI SS7MD Programmer’s Manual Issue 3
7.1.4 SCBUS_LISTEN – Connect Switch Timeslot to LIU Timeslot
Synopsis
This command establishes a connection from the switch to an outgoing timeslot on the Line Interface Unit
(LIU).
Note: Dynamic modification of voice paths can only be performed by issuing messages directly to the
board. The MVD_MSG_SC_LISTEN message is recommended for this purpose.
Syntax
SCBUS_LISTEN <board_id> <liu_id> <timeslot> <sc_channel>
Example
SCBUS_LISTEN 0 0 31 23
Parameters
The SCBUS_LISTEN command includes the following parameters:
• <board_id>
The logical identity of the board in the range from 0 to one less than the number of boards supported.
• <liu_id>
The identifier of the T1/E1/J1 Line Interface Unit (LIU) in the range 0 to one less than the number of
LIUs.
• <timeslot>
The timeslot number on the T1/E1/J1 LIU on which the data from the switch will be transmitted. The
valid ranges are:
— For a T1 interface: 1 to 24.
— For an E1 interface: 1 to 31.
— For a J1 interface: 1 to 24.
• <sc_channel>
The channel number on the switch to which the LIU will listen. This should be in the range from 0 to one
less than the total number of channels on the switch.