Using #2 in register 01 adds .5 seconds.  So, added 4 times to add a delay of 2 seconds, as shown in the example below:

For example, program it to auto dial 3055585577 pause (2 seconds) then dial 1:

Step 1) Enter # 0 *(you should hear a 'Beep' sound) -- entering the programming mode 


Step 2) Enter 01 (you should hear a 'Beep' sound) -- entering function code to restrict numbers 


Step 3) Enter 3055585577 #2#2#2#2 1


Step 4) Hang-up or press ## -- exit