How can I boost my cellular signal
I have Verizon and AT&T and both phones usually out one bar how can I boost my signal on iPhone 6s
iPhone 6s, iOS 10.3.1
A couple of options that you may want to explore:
Use wi-fi for calling: Make a call with Wi-Fi Calling - Apple Support
Also, both Verison and AT&T offer devices such as:
https://www.att.com/att/microcell/
https://www.verizonwireless.com/accessories/samsung-4g-lte-network-extender/