Out of curiosity, how's the quality of the landlines in India? In the US, practically every household has access to a landline, regardless of how far out in the backwoods they live or how poor they are. US telecoms networks have built/maintained a physical network (with five nines of up-time!) across a huge geographic span for about 100 years.
I'm not saying that telcoms haven't squandered their profits to some extent. And it makes me sick to think about how they've abused their subsidies on the backs of the taxpayers. But anyone who's ever had to modernize a corporate LAN/WAN, or refactor an app written in a dead language knows how much, much easier it is to move quicker and cheaper if you don't already have a legacy platform to worry about. I can't imagine how much inertia a hundred year-old system has.