Panasonic KX-T336 System Reference Manual page 1391

That is, preferential order is determined by the sub parameters
which are not substituted by wild card character "*."
Listing all entries
All stored entries may be listed by entering LIST command only.
Up to 14 entries can be displayed on the screen at a time.
For example, if 30 entries are stored, the first execution of LIST will
display the first 14 entries and the second execution of LIST will
display the second 14 entries and the third execution of LIST will
display the remaining two entries.
Entering: LIST */*/* lists all the stored entries.
Displayed Message
*****
*****
*****
*****
*****
Displayed Message
Error: Illegal main command
Error: Illegal sub command
Error: Input data do not exist.
Total 3 entries
No data is entered.
13-B-8
Meaning
There is an error in the main command.
There is an error in the sub command.
Entered data has not been stored.
There are three entries to be listed.
No data stored.