Starry - A touchscreen Wi-Fi router and radical Internet service
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
WiFi Map - A crowdsourced list of routers and passwords
TextMe - TextMe is a free calls and messaging application at both local and international levels.
eero - Blanket your home in fast, reliable WiFi
Talkatone - Android App on. Google Play. Stop paying for cell minutes, texts & landlines; Turn your iPad or iPod touch into a phone; Call/Text even in areas with bad cell coverage; Call/Text when travelling without paying for expensive international minutes.