First post.  It may be my last.  15 year Verizon customer.

After reading the pages and pages of posts from customers whose service was once great and is now poor, I feel like I'm adding to a broken record.   I get multiple Call Failures a day as I travel in the western suburbs of Chicago (ex: 60517, 60532, 60540).   The  usual suggestions - run diagnostics on the phone, get a new SIM card - did not help.  Trouble tickets have been closed the day after they are opened.  The resolution is always the same - I live, work, and travel in known marginal/variable service areas. 

Calls are possible at my home and workplace only because of Wi-Fi calling.  Calls reliably drop when I'm a block (~ 1/8 mile) from my house.

While I've read of many who are having similar problems, I haven't seen any solutions.  I'm open to suggestions, though.  Please share your experience with fixing this problem, even if it's been to choose another carrier.

Thanks!