T-Mobile US and Sprint expect their merger to be approved by a U.S. national security panel as early as next week, after their respective parent companies said they would consider curbing their use of equipment from China's Huawei Technologies, people familiar with the matter told Reuters. U.S. government officials have been pressuring T-Mobile's German majority owner, Deutsche Telekom, to stop using Huawei equipment, the sources said. The Committee on Foreign Investment in the United States (CFIUS) has been conducting a national security review of the Sprint deal, which was announced in April.