Operating the Telephone with the Display
Secure voice transmission
Prerequisite: Technical personnel must activate the secure voice trans- mission function.
If you call a station or are being called by a station via a secure connection, you will see a flashing lock symbol on the phone’s display. Upon request you will hear a short acoustic signal if the connection is unsecure (see
page 112).
Mobility
If your optiPoint 410/420 advance S V7.0 has been set up
For more information about logging on/off as a mobility user please see page 85.
Multiline Functions
Some functions and features are only available to you if the administrator configured your telephone to support multiple lines. The following are some examples of special multiline telephone features:
•Line keys
•Manual hold
•Multiline priority
•Visual indicators for line key status
Most features are common to
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