The international voice market doesn't bring a lot of joy these days. (For that, may I suggest adopting a puppy?)
As we've written before, 2015 marked a turning point in the international voice market. It was the first time since the Great Depression that international call traffic declined, even if only by one half percent.
And it's been downhill ever since, as the slump in voice traffic has turned into a fact of life. Carriers’ traffic fell a further 9% in 2017 and then another 4% in 2018, to a total of 465 billion minutes.