Panasonic KX-T336 System Reference Manual page 896

Reference
For details about the following commands, refer to:
Section 15-E-3.00 "TST command (Test)
TST
Section 15-F-1.00 "SYM command (System
SYM
Maintenance Monitor)
Section 15-D-1.02 "Error Log"
ERR
Section 15-F-2.00 "TFD command (Traffic
TFD
Display)"
Section 16-B-4.01 "Saving Procedure"
SAV
Section 17-B-2.01 "Saving Procedure"
Section 16-B-4.02 "Loading Procedure"
LOD
Section 17-B-2.02 "Loading Procedure"
Section 8-B-2.02 "Restart"
RST
8-D-5