I am now unable to call 800 numbers when preceded by 1+. I get a high pitched tone and an “invalid number” message. Tried calling customer service with 611, and got same results. If I dial 800 without dialing 1 +, call goes through, however 611 still does not work. Regular calls dialed with 1 + do work fine. Just a note, called customer service from landline, they had no clue…. Transferred me to tier 2, and got disconnected, again! This looks like an ongoing problem from other posts. Need help from Verizon!