Hi Joe, the 612 is different from any other panasonic programming.

first you have to find what handling table the ddi is pointed to

Look under speed dial- handling table 001
oo1 -499 are speed dial 500 up is ddi translation table. check there for the number you want to ring on the extension and note speed number.
then go to prog 024 and enter speed number , it will show 2 numbers one is day table and second is night.
now you can go to prog 452 and enter jack number, this is normaly the last 2 digits of extension, you can check by pressing program 996 on phone, it will show you the jack and extension number.in there you will have a handling table number, press # plus table number, then press auto answer to select enable, then press store.

after all that if no numbers are entered in prog 001 - location 500 up then handling table 61 is day and 62 is night mode for non ddi ringing.

I hope this is ok as it is a while since I did one of these, through the handset anyway.

“I have not failed. I've just found 10,000 ways that won't work.”