An Overview of Your Phone
Understanding Lines vs. Calls
To avoid confusion about lines and calls, refer to these descriptions:
Cisco Unified IP Phone
Understanding Line and Call Icons
Your phone displays icons to help you determine the language (locale) settings, and the call and line state.
Icon | Line or Call State | Description |
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| No call activity on this line. | |
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| You are dialing a number or an outgoing call is ringing. | |
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| Connected call | You are currently connected to the other party. |
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| Ringing call | An incoming call is ringing on one of your lines. |
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| Call on hold | You have put the call on hold. See the “Using Hold and Resume” section |
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| on page 26. |
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| Another phone that shares your line has a connected call. See the “Using a | |
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| Shared Line” section on page 36 for details. |
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| Authenticated | See the “Making and Receiving Secure Calls” section on page 39. |
| call |
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| Encrypted call | See the “Making and Receiving Secure Calls” section on page 39. |
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| Idle line (BLF) | See the “Using BLF to Determine a Line State” section on page 40. |
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| Busy line (BLF) | See the “Using BLF to Determine a Line State” section on page 40. |
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Cisco Unified IP Phone | 21 |