TASSTA relaunches its 3GPP mission-critical server as T.XON

TASSTA has renamed and rebuilt its 3GPP mission-critical (MCX) server. Until now known as T.Quasar, it continues as T.XON 11.0; the first releases, 11.4.1 and 11.5.0, shipped in September 2026.

The headline feature is site replication: T.XON is designed so that when one site goes down, the talk groups keep running on another. Release 11.4.1 carries 128 features across server, administration and recording.
T.XON is the core of an environment TASSTA develops and releases as one product:

The server is documented as open to other vendors’ MCX clients and ETSI-compliant user equipment.
For existing customers, T.XON continues the T.Quasar line with the same roadmap and the same support people, and existing documentation links keep working. Each T.Quasar customer’s TASSTA contact explains what moving to T.XON means for their site.
“Buyers want a working system, not a set of parts they have to make work together,” said Kaveh Hosseinzadeh, Managing Director of TASSTA. “T.XON is the name of that system.”

TASSTA shows the T.XON environment at PMRExpo, 24 to 26 November 2026, Koelnmesse Cologne, stand E048-F049.