Block Incoming Calls from a Contact:

  1. Launch “Contacts
  2. Go to “All contacts” if needed
  3. Tap the contact whose calls you want to block
  4. Tap “Edit” > “Menu
  5. Enable “All calls to voicemail

Unblock Calls from a Contact:

  1. Open “Contacts” and go to “All contacts
  2. Tap the desired contact then tap “Edit
  3. Tap “Menu” and disable “All calls to voicemail

Block Messages:

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

NOTE: The conversation and future messages sent by the blocked contact will be archived. Notification alerts are disabled for all archived messages.

Unblock Messages:

  1. Open Google Messenger
  2. Tap “Menu” > “archived” and select the conversation exchanged with the contact you want to unblock
  3. Tap “Menu” > “Unarchive” > “Menu” > “People & Options
  4. Tap “Unblock [phone number]”

Enable Call Forwarding:

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

Disable Call Forwarding:

  1. Launch “Phone
  2. Tap “Menu” > “Settings
  3. Go to “Call forwarding
  4. If necessary, select the forwarding option you want to turn off and tap “Disable



See More: Sonim XP8: Block/Unblock Calls & Messages, Manage Call Forwarding