Gradually from November 2018, travel agents in India could no longer book Air India’s domestic flights, for example, Delhi to Mumbai, on Amadeus or Sabre, only on Travelport. As the deal covers only domestic, they could still book Air India’s international flights, say, Delhi to London, on any of the three competing distribution systems, while agents outside India could also continue to book Air India’s domestic and international content on all three (until December 4, 2018, when Amadeus left, that is). But as mentioned earlier, domestic is where most of the traffic is.