beijing/washington china lodge diplomatic protest saturday u.s. president-elect donald trump speak phone president tsai ing-wen taiwan blame self-ruled island beijing claim petty move 10-minute telephone call taiwan leadership first u.s. president-elect president since president jimmy carter switch diplomatic recognition taiwan china 1979 acknowledge taiwan part one china china foreign ministry say lodge stern representations call relevant u.s. side urge careful handle taiwan issue avoid unnecessary disturbances tie one china principle political basis china-u.s. relationship say word imply protest go trump camp ministry provide explanation speak early hours friday telephone call chinese foreign minister wang yi pointedly blame taiwan exchange rather trump billionaire businessman little foreign policy experience taiwan side engage petty action change one china structure already form international community wang say academic forum beijing china foreign ministry quote say believe change longstanding one china policy unite state government comment forum wang note quickly president xi jinping trump speak telephone trump victory trump praise china great country wang say exchange send positive signal future development sino-u.s. relations accord ministry website taiwan mention call accord official chinese transcript china taiwan affairs office also call conversation petty move taiwan change island status part china beijing resolute oppose independence taiwan add trump say twitter tsai initiate call taiwan president president taiwan call today wish congratulations win presidency thank say alex huang spokesman tsai say course side agree ahead time make contact trump tsai note close economic political security tie exist taiwan unite state trump transition team say statement taiwan presidential office say two discuss strengthen bilateral interactions establish close cooperation china consider taiwan wayward province never renounce use force bring control relations two side worsen since tsai head pro-independence democratic progressive party elect president january chinese state media downplay possibility major blow-up beijing relations washington trump prepare assume office influential state-run tabloid global time say online editorial trump really overturn one china principle upon assume office would create crisis china little time anything else believe something shrewd trump want do china official xinhua news agency say trump need know beijing cooperative partner long washington respect china core interest include issue taiwan china unite state destine rival say english-language commentary washington remain taiwan important political ally sole arm supplier despite lack formal diplomatic tie irony lose trump interest u.s. sell taiwan billions dollars military equipment accept congratulatory call trump say another tweet trump eschew tradition call foreign leaders since u.s. election prompt white house encourage make use diplomatic expertise counsel state department trump adviser kellyanne conway say cnn trump well aware u.s. policy taiwan administration officials say trump team alert white house call ahead time white house also say trump call longstanding policy china taiwan change advisers republican president-elect indicate likely take robust policy toward china obama democrat trump plan boost u.s. military part response china increase power asia however detail plan remain scant trump lambast china throughout u.s. election campaign drum headline pledge slap 45 percent tariff import chinese goods label country currency manipulator first day office early week trump speak pakistani prime minister nawaz sharif praise accord pakistani leader office terrific guy islamabad washington see relations sour recent years u.s. accusations pakistan shelter islamist militants kill u.s. soldier afghanistan charge deny south asian nation trump also invite philippine leader rodrigo duterte white house next year duterte aide say engage animate phone conversation duterte openly insult obama cancel plan meet september statement issue trump transition team make mention invitation china lodge protest trump call taiwan president