Create a New Contact:

  1. Open the apps drawer
  2. Launch “People
  3. Tap “+
  4. Enter the contact’s phone number, name, and other details in the appropriate field
  5. Tap the button located under “Contact type” and select where to store the contact
  6. Tap the button under “Phone” and select the desired phone number type
  7. When ready, tap “Save

Import / Export Contacts:

  1. Launch “People
  2. Tap “Menu” > “Manage contacts
  3. Tap “Import / Export contacts
  4. Select to “Export to SD card”, or “Import from SD card” (or to import / export from / to “SIM card”)
  5. Choose the contacts you want to import or export, or tap “Menu” > “Select all
  6. Tap “Save

Add a Contact to Speed Dial:

  1. Open the “Phone” app
  2. Tap “Menu” > “Speed dial
  3. Tap “+” and select the desired contact, or use the “Search” field
  4. Tap the button under “Number” to select the phone number you want to assign to speed dial
  5. Tap the button under “Location” to associate the number with a speed dial button
  6. Tap “Save

Delete a Contact:

  1. Open “People” on the home screen
  2. Tap “Menu” > “Delete contacts
  3. Choose the contacts you want to delete
  4. Tap “Delete” to confirm

Create a New Caller Group:

  1. Tap “Phone” on the home screen
  2. Swipe the screen to access the “Groups” tab
  3. Tap “+” and enter the desired name for the group
  4. Tap “Save

Add Contacts to an Existing Caller Group:

  1. Launch “Phone” and access the “Groups” tab
  2. Select the group you want to add contacts to
  3. Tap “+” > “Add an existing contact
  4. Tick the check boxes associated with the desired contacts
  5. Tap “Save” when ready

View and Reset the Call Log:

  1. Launch “Phone
  2. Swipe the screen left or right to “Call History
  3. To view more details on a specific call log entry, tap and hold it
  4. To reset the call log, tap “Menu” > “Remove call history” > “Menu” > “Select all
  5. Tap “Delete” > “OK

See More: HTC Desire 728: Manage Contacts, Caller Groups, and the Call Log