After many years of great service with Verizon including 5 years at this location with strong signal strength and no dropped calls, we have now for several weeks had weak signal and dropped calls, and slow internet for long periods each day. Going outside the house does not help. We both have Samsung Galaxy S3's and have had them at this location for two years. We are just 10 miles south of Charlotte NC at zip 29707 in Indian Land SC.We don't mind paying for Verizon but we need the reliability and signal strength. What is going on here?