Device Adapter phones, except for analog phones without display and several digital and UNIStim phones without display, show caller information and other data. A subset also provides soft keys, and a largely overlapping subset provides labels for the provisioned programmable buttons.
The display updates at various stages while the user is involved in calls. In particular, it changes when:
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Making a basic call.
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Receiving a basic call.
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Receiving information about changes in the far end while making or receiving a basic call.
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Answering a basic call.
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Receiving an answer indication for a basic call.
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Releasing a basic call.
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Receiving the clearing from the other party releasing a basic call.
The topics above include:
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Context-sensitive key access:
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Time and date, call timer, and other similar set display features.
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Display of calling or called numbers.
In addition, the following are also included in the station displays capable of them:
