DA610
IMPORTANT: This procedure deletes all memory contents of the telephone including the telephone book, redial list etc.!
1.) Lift the handset
2.) Press memory key
3.) Enter 1 250
4.) Press memory key
5.) Hang up the handset
DA 710 & DA810A
IMPORTANT: This procedure deletes all memory contents of the telephone including the telephone book, redial list etc.!
1.) Lift the handset
2.) Press the menu key
3.) Enter 1 250
4.) Confirm with OK
5.) Hang up the handset