The FCC is also considering a rule that would require companies to tell customers when their call is being handled outside the U.S. and allow callers to transfer to a U.S. center.

Federal Communications Commission Chairman Brendan Carr made his case on Tuesday that overseas call centers pose potential national security risks because they may be compromised by foreign actors.

The proposed rule would require affected companies to disclose a customer service agent’s location and limit call volume from overseas contact centers, among other changes.

The FCC will vote this month on requiring certain businesses to train their call center employees in English language proficiency.