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Signals – AASTRA 4220 Lite for BusinessPhone User Guide EN User Manual

Page 13

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BusinessPhone – Dialog 4220 Lite / Dialog 3210

Description

Signals

Ringing signals are emitted from the phone.

Note: The tones and ringing signals in this guide refer to the

standard system but may vary between countries.

Internal ringing signal

- repeated after 4 s

External ringing signal

- repeated after 4 s

Automatic Callback signal