You might be missing a trick here. Like many other people, I get lousy mobile phone reception indoors at home.1-2 bars out of 5. Sometimes 2G sometimes 3G. Variable. Unpredictable. Not good enough.
On Vonage Roaming Wifi my signal strength for incoming calls is 5 bars 5G(!). True HD call quality.
I think on this point alone you could win lots of new customers.
“Have you got lousy mobile/cellphone reception at home?
Have you got wifi?
Wanna know The #Win?”