The telecom sector in 2020 and beyond Tilis 4 years ago https://www.mckinsey.com/industries/technology-media-and-telecommunications/our-insights/the-telecom-sector-in-2020-and-beyond?cid=other-eml-alt-mip-mck&hdpid=2a59335f-eea4-491d-bc81-9a8a4d69d739&hctky=2073353&hlkid=700e64d6b4b64a719cb2f314d4ed4afb#