Aastra 612d User Guide Aastra 612d for Aastra 400 - Page 20
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Operating and display elements Display symbols Radio link quality Very good Disruption probable Good Phone calls not possible State of charge Charge state 61-100 % Charge state 11-30 % Charge state 4-5 % Charge state 31-60 % Charge state 6-10 % Charge state 0-3 % (flashing) Notes: • If the battery is completely discharged when the phone is placed in the charging unit, there will be no display initially until the battery has reached a certain charge level. This may take several minutes and does not mean there is a malfunction. • Even when the phone is switched off, the battery will still slowly discharge. • When the battery capacity is almost exhausted, a series of warning beeps sounds. This warning can be disabled, see chapter "Setting up an audio profile", page 87. If you are making a call, you have approximately five minutes' talk time left before the handset switches itself off. • The state of charge is also available via the service menu: Press key 5 and hold it down for a moment. • Information on operating times can be found in the chapter "Battery charge and usage times", page 116. • Information on operating times can be found in the chapter "Battery", page 110. System registrations Phone registered in system A, B, C, or D and ready for use (only displayed when phone is registered on more than one system) 20 Aastra 612d eud-1584/1.0 - R3.0 - 04.2013