Block Incoming Calls:

  1. Open “Contacts
  2. Access “All contacts
  3. Select the contact/phone number you want to block
  4. Tap “Edit” > “Menu
  5. Enable “All calls to voicemail

Unblock Calls:

  1. Open “Contacts
  2. Go to “All contacts
  3. Select the contact you want to unblock
  4. Tap “Edit” > “Menu” and disable “All calls to voicemail

Block Messages:

  1. Open Google Messages
  2. Tap the conversation exchanged with the phone number/contact you want to block
  3. Tap “Menu” > “People & Options
  4. Tap “Block [phone number]” > “OK

NOTE: The conversation and future messages from the blocked contact will be archived, and notifications will be disabled for all of the archived messages.

Unblock Messages:

  1. Open Google Messages
  2. Tap “Menu” > “archived
  3. Select the conversation exchanged with the contact/phone number whose messages you want to unblock
  4. Tap “Menu” > “Unarchive
  5. Tap “Menu” again and access “People & Options
  6. Tap “Unblock [phone number]”

Enable Call Forwarding:

  1. Launch “Phone
  2. Tap “Menu” > “Settings
  3. Go to “Call forwarding
  4. Edit or enter the phone number you want to use for call forwarding
  5. Tap “Enable

Enable Conditional Call Forwarding:

  1. Open “Phone” and tap “Menu
  2. Tap “Settings” > “Call forwarding
  3. Select to forward incoming calls “When unanswered” “When unreachable” or “When busy
  4. Enter or edit the phone number you want to use for call forwarding
  5. Tap “Enable” or “Update

Disable Call Forwarding:

  1. Launch “Phone
  2. Tap “Menu” and go to “Settings
  3. Tap “Call forwarding
  4. Select the forwarding option you want to turn off and tap “Disable



See More: ZTE Nubia Z18: Block/Unblock Calls, Messages, and Call Forwarding