Single call to landline, only 2 sec long. So many single ring calls with online blocker that it seems likely my spammers are using brand new numbers to test how they can get through. So I shut off all blocking and am forwarding all incoming calls to "not in service" until traffic diminishes, or I will change numbers or drop landline altogether. With all incoming calls forwarded - outgoing calls work fine and incoming calls are still logged. So I really don't miss anything, appreciate the restored tranquility of home, and snicker at the the thought of telemarketers listening to my "not in service" message.

don't know the number, tired of these unwanted to calls!!