Yealink SIP-T28P - Manual (Page 63)

Customizing Your Phone
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2. Press or to switch between All Calls, Placed Calls, Received Calls, Missed
Calls and Forwarded Calls.
3. Press or to select the desired entry.
4. Press the Delete soft key.
To delete all entries from the call history list:
1. Press the History soft key.
2. Press or to switch between All Calls, Placed Calls, Received Calls, Missed
Calls and Forwarded Calls
3. Press the Option soft key, and then select Delete All from the prompt list.
4. Press the OK soft key.
The LCD screen prompts "Delete all records?".
5. Press the OK soft key to confirm the deletion or the Cancel soft key to cancel.
You can upload your custom logo which will be shown on the idle screen.
To upload a custom logo via web user interface:
1. Click on Features->General Information.