Nortel Networks 4025 manual Charging guidelines, Operating times, Charge display

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Setting up the handset

CAUTION

Avoid placing the handset in the charger when fully- charged batteries have been removed from the handset and inserted again. They can become overcharged.

Charging guidelines

Charge the batteries for at least six to seven hours before using the handset for the first time. This protective measure extends the service life of the batteries.

The maximum power output is attained only after three to five charging and discharging cycles.

Do not leave the handset connected to the charger longer than one month without using.

The batteries can be charged and discharged hundreds of times, but eventually they will be worn out. If the operating time (that is, talk and standby time) is significantly shorter than usual, it is time to replace the batteries.

To maintain optimum operating time, the batteries should be discharged from time to time by not placing the handset in the charger but leaving it switched on until it switches itself off. Use only this method to discharge the batteries.

Extreme temperatures influence the charging capability of the batteries.

Operating times

Empty batteries require six to seven hours to fully charge.

When a fully-charged handset is switched off, it discharges in approximately one week.

When batteries are fully charged, the handset has approximately 20 hours of talk time or approximately 200 hours of standby time.

Charge display

The handset display screen shows the battery charge status. When the battery capacity is almost exhausted, an alert tone sounds in the form of

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Contents Nortel Dect Handset Page Revision history Revision history Contents Using Voice Mail Audio settings Contents Important safety information Sensitive electronic equipmentSafety precautions Observe the followingBasic features About the handsetSetting up the handset Installing the chargerSetting up the handset Installing the batteries Illustrates how to insert batteries in the Dect HandsetImportant battery information Charging the batteriesOperating times Charging guidelinesCharge display Battery charge status Subscribing the handset to a Dect systemPABX-PIN Cancel Subscribe Use Park-Code Handset controls Dect HandsetHandset controls Keys and display Switching the handset on/offIcon/text line Symbol Status Text lineSoft key line OK soft keyEsc soft key Handset illumination Key LockCalling features Using the Pre-Dial optionMaking a call DialingUsing Quick Call Using HandsfreeChanging settings during a call Answering a callMuting the ringer Making an SOS callTransferring a call Adjusting the earpiece/speaker volumeMuting the handset during a call Using Voice Mail Preconfiguring Voice MailAccessing Voice Mail Using Voice Mail Using the Telephone Book Keypad layoutKeypad Alphabet equivalent Adding a new entry Editing an entryEdit Deleting an entry Deleting all entriesUsing Quick Call Assigning a Quick Call numberDeleting a Quick Call assignment Transferring phone numbers to the Telephone Book Dialing a number from the Redial List Using the Redial ListTransferring a number to the Telephone Book Options Add To Using the Caller List Calling a number from the Caller List Add to option Adjusting the ringer volume Audio settingsSelecting the ringer melody Incoming CallsX option Setting earpiece/speaker volume Earpiece HandsfreeAccessing the Telephone Options menu Telephone OptionsSetting the User Name Selecting the handset languageSetting the Emergency Call SOS number Emergency Call optionConfiguring Attention Tones Activating/deactivating Charger Answer Adjusting Display Contrast Activating/deactivating Silent ChargingTelephone Options System Accessing the System menuSubscribing the handset Manually selecting the Dect system Enabling automatic Dect system selectionSubscription Auto Search Deleting a system Editing the system name and phone number System Accessing the Security menu Security functionsResetting the handset Clearing the Telephone BookChanging the PIN Clear Phonebook optionActivating Read-Only Security functions Accessories Order CodeTerms you should know Terms you should know Index Index Page Nortel Communication Server