The Justice Department has closed an antitrust investigation into a trade group that includes Verizon and AT&T among its members and which had been criticized for making it harder for consumers to switch carriers.

In a letter to the GSM Association, which sets standards on eSIM mobile technology and includes the four major U.S. carriers, the Justice Department said it was pleased that the group “is ready to use its standard-setting process to create a more consumer-friendly eSIM standard.”

The Justice Department did not say in its letters which carriers were included in its probe. In April 2018, Reuters and others reported that the department was probing alleged coordination by AT&T Inc, Verizon Communications as well as the trade group. T-Mobile and Sprint are also part of the organization.

Gigi Sohn, a consumer advocate and telecommunications expert, said the letter was a “slap on the wrist” because the Justice Department Antitrust Division did nothing more than force a change in anti-competitive behavior.

More at Reuters.