I've used Google Fi for 1.7 years. Call quality on my end is fine, but sometimes the other end (1/5 calls) says I'm breaking up. Usually plugging phone in fix

I've used Google Fi for 1.7 years. Call quality on my end is fine, but sometimes the other end (1/5 calls) says I'm breaking up. Usually plugging phone in fixes issues. Since I'm tethered to wifi for most of my day, avg bill ~25$/mo.