Plessey GPT PKS2

1. Lift handset
2. Press Save and Clock
3. Dial the Year i.e. 2003 followed by the *
4. Dial the Month and Day i.e. 0401 then *
5. Dial the day i.e. 1 for Monday then *
6. Dial the time HH MM (in 24 hour clock) i.e. 0715
7. Dial * then replace the handset