Panasonic KX-T336 System Reference Manual page 240

<Example 2>
To register the local access code and the
authorization number of the telephone company A
which you want to add automatically when trunk
group 01 or 02 is accessed, enter those numbers
into "Digits to be Inserted" field.
When trunk group 01 is accessed:
765-4321 P P 012345
Enter these numbers into "Digits to
be Inserted" field of "ENT" 01.
Automatic Route Selection-Modified Digit Table
DEL
ENT.
0
01 7654321PP012345
0
02 9876543PPH567890
03
04
The numbers stored in "Digits to be Inserted" is
sent to the CO line first before the user dialed
number is sent.
To insert the user dialed number into the stored
number, enter "H" at the proper place. Then the
user dialed number is inserted where "H" is
entered and sent to the CO line.
The registered numbers in the above table are
sent to the CO line as follows:
When "7654321PP01234" is stored:
7654321
Pause
When "9876543PPH56789" is registered :
9876543
Pause
Automatically added number
201-234-5678
Modified Digit Table (1/2)
Digits to be Inserted
012345
2012345678
When trunk group 02 is accessed:
987-6543 P P 201-234-5678
Enter these numbers into "Digits to
be Inserted" field of "ENT" 02.
ENT. DEL
09
10
11
12
(Table 4)
2012345678 is sent to the CO line.
Automatically added number
567890 is sent to the CO line.
Automatically added number
User dialed number
3-C-25
(40993)
567890
OFL PRG SCR DIR
Digits to be Inserted
User dialed number