Sylvania STC595 Owner's Manual page 8

15. Option (#) Button: (Option) Press to change the displayed telephone number into 7,
10, or 11 digit DIALING mode during Caller ID callback.
16. Microphone:
17. CHARGE CONTACTS: For charging the BATTERY PACK inside the HANDSET. We
recommend cleaning the CHARGE CONTACTS periodically with a damp cloth.
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