TUI Hardware Requirements and PC Keyboard Hotkeys (Windows CE 5.0)
This topic discusses TUI technical requirements.
The IP phone advanced design template demonstrated in How to Create a Default IP Phone on a CEPC and How to Create a Default IP Phone on an Emulator creates an OS design that matches the following requirements on a CEPC or emulator.
- A 240 x 320 display resolution and an 8-bit or higher color display. The TUI might require modification for use with a higher resolution display. This modification involves the MetricsAndColors.h file introduced in Modifying TUI Strings, Icons, and Other UI Elements.
- The screen can be touch screen or standard display. If you do not use a touch screen, all user interaction happens through hardware buttons (or the keyboard on a CEPC or emulator).
The following table shows the required and optional hardware buttons to fully support the TUI with no modification of the TUI source code (you can change any required buttons by modifying the source code).
The PC keyboard equivalent column shows the corresponding keys you can use when working on a run-time image using a CEPC, emulator, or environment with a keyboard.
For a complete mapping between hardware buttons and Windows key codes, see the hotkeys.h file in %_WINCEROOT%\Public\VoIP\OAK\Phone\TUI\Inc.
| Hardware button | PC keyboard equivalent | Required on touch screen display | Required on standard display |
|---|---|---|---|
| Numeric keypad | Numeric keypad or number keys | Required | Required |
| * numeric keypad key | INSERT key | Required | Required |
| # numeric keypad key | DELETE key | Required | Required |
| On hook and off hook switch | F5
To simulate the off hook state, hold down F5. To change the hook state without requiring that you continue to press a key, use the speakerphone key, F6. |
Required | Required |
| Speakerphone on and off hook switch | F6 | Required | Required |
| Four context buttons | F1, F2, F3, F4 | Optional | Required |
| Mute | F7 | Optional | Optional |
| Hold | F8 | Optional | Optional |
| Transfer | F9 | Optional | Optional |
| Redial | F10 | Optional | Optional |
| Conference | F11 | Optional | Optional |
| Up and down navigation buttons | UP ARROW, DOWN ARROW keys | Optional | Required |
| Up and down volume buttons | PAGE UP and PAGE DOWN keys | Optional | Optional |
| Home screen | HOME key | Optional | Optional |
| Speed Dial screen | TAB key | Optional | Optional |
| Directory screen | Return/Enter key | Optional | Optional |
| Voicemail screen | ESC key | Optional | Optional |
| Menu screen | END key | Optional | Optional |
| Shutdown application | F12 | Not applicable (only available during testing, with a keyboard) | Not applicable (only available during testing, with a keyboard) |
See Also
TUI Architecture and Functionality
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