Block Calls:

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

Unblock Calls:

  1. Launch “Contacts
  2. Go to “All contacts
  3. Select the contact you want to unblock
  4. Tap “Edit” > “Menu
  5. Turn “All calls to voicemail” OFF

Block Messages:

  1. Open Google Messenger
  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 notification alerts are disabled for archived messages.

Unblock Messages:

  1. Launch Google Messenger
  2. Tap “Menu” > “Archived
  3. Select the conversation exchanged with the contact you want to unblock
  4. Tap “Menu” > “Unarchive
  5. Press “Menu” again and go to “People & options
  6. Tap “Unblock [phone number]”

Enable Call Forwarding:

  1. Open “Phone” and tap “Menu
  2. Access “Settings
  3. Tap “Call forwarding” (NOTE: this option might be unavailable if it isn’t supported by your carrier)
  4. Enter or edit the phone number you want to use for call forwarding
  5. Tap “Enable

Enable Conditional Call Forwarding:

  1. Launch “Phone
  2. Tap “Menu
  3. Go to “Settings” > “Call forwarding
  4. Select to forward calls “When unreachable”, “When unanswered” or “When busy
  5. Edit or enter the phone number you want to use for call forwarding
  6. Tap “Enable” / “Update

Disable Call Forwarding:

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



See More: ZTE Blade A3: Block/Unblock Calls & Messages; Manage Call Forwarding