Mobile said on Sunday it will launch its satellite-to-cell service, powered by SpaceX's Starlink, in July for $15 a month, as the U.S. wireless carrier aims to eliminate mobile dead zones and extend connectivity to remote areas.

In a splashy ad that aired during the Super Bowl’s first quarter on Sunday, T-Mobile said it was throwing open the doors to its satellite messaging beta test — powered by Elon Musk’s Starlink — for free until July. The twist? You don’t even need to be an existing T-Mobile customer to try it.

T-Mobile’s Starlink-powered direct-to-cell satellite messaging service is now open for anyone in the US to try for free — including people who aren’t T-Mobile customers. The service will be limited to text messaging at first but the company hopes to have some apps and even limited multimedia support ready by the time it goes live this summer.