Upstream, a world leader in mobile marketing, and Polska Telefonia Cyfrowa (PTC) – the carrier behind the popular Era, Tak Tak and Heyah brands – have launched on March 30th an exciting new skill-based trivia competition in Poland. In the “100 Mercedes with ERA!” competition, participants receive trivia questions of varying difficulty and gather points within the week. At the end of every week, the 7 users with the most points win a brand new Mercedes C-Class C180K. Daily cash prizes and other small prizes, such as downloadable songs, ring-back tones and talk-time packages, make every participant a winner! For more info, visit www.100mercedes.pl.
July 31, 2026
Upstream helps Mobile Network Operators adapt to Chrome’s new HTTPS eraUpstream has published a new white paper titled “Can Header Enrichment Survive Chrome’s HTTPS Era?”, in which it analyzes how Chrome’s HTTPS-only enforcement reshapes the way mobile subscribers are identified and, at the same time, presents an innovative, deployment-ready solution.
