You’d be forgiven for thinking that voice calling is becoming less important to the telecommunications industry. Figures from corporations and government have shown, in recent years, a decline in those subscribing to home-phone lines. Its apparent replacement, mobile service, is becoming more about accessing the web than making calls. For example, Rogers Communications Inc.’s wireless division saw revenue from data services in the first quarter of 2014 surpass voice revenue for the first time. However, an international coalition is now promoting the idea that advances in...