Panasonic KX-T336 System Reference Manual page 1554

1.03 Port Status screen
Command Format
OPE>SYM 3
Device Status (3/4)
Slot
1
2
P 3
o 4
r 5
t 6
7
8
DTMF1
Rec 2
I: In Service, O: Out of Service, F: Fault, B: Busy Out
Description
DTMF Rec Status of DTMF receiver
Two DTMF receivers are provided on the
SLC, HLC and OPX cards.
The system administrator can change the status of a CO
port from "Busy Out" to "INS" by entering INS command.
In the above screen a blank indicates that a port is not
assigned to the system.
Port Status
Basic Shelf Expansion Shelf 1
000000000111 000000000111111
123456789012 123456789012345
I O I I
I O I I
O O I I
O I I
I O B
F O B
I F
I F
I O F
F O I
15-F-4
ONL MON
Expansion Shelf 2
000000000111111
123456789012345
I
I
I
I
I
I
I
I
I
I