Normalizer::compose(tel, TRUE, 0, nfkc, errorCode);
Normalizer::decompose(tel, TRUE, 0, nfkd, errorCode);
if(U_FAILURE(errorCode)) {
Normalizer::compose(tel, TRUE, 0, nfkc, errorCode);
Normalizer::decompose(tel, TRUE, 0, nfkd, errorCode);
if(U_FAILURE(errorCode)) {