[Business & Human Rights Resource Centre invited Deutsche Telekom and T-Mobile to respond. Deutsche Telekom indicated it will send a response after the June 2014 shareholder meeting. T-Mobile referred us to the Board of Directors' response - also provided.] We are writing to urge Deutsche Telekom AG, as the owner of a majority of the common stock of T-Mobile U.S...to vote for a shareholder proposal which calls on the T-Mobile Board of Directors to report to stockholders about how it assesses human rights risks in its operations and supply chain, in accordance with the United Nations Guiding Principles on Business and Human Rights...T-Mobile should follow Deutsche Telekom's example and conduct its own human rights risk assessment...[We] believe there are three major sources of potential human rights risks to T-Mobile: the company's own operations in the United States, its outsourced call center overseas, and from its retail supply chain...T-Mobile has fdaced allegations that it has violated its employees' freedom of association and right to organize in the United States...We are concerned that T-Mobile's Supplier Code of Conduct is not adequate to prevent human rights abuses in countries that have systemic violations of workers' rights...[Also refers to MetroPCS, Startek, Telvista.]