(Telecompaper) Singapore operator Singtel saw its operating revenue grow 3 percent year-on-year in constant currency terms to SGD 8.40 billion in the half-year ended 30 September, underpinned by strong postpaid mobile customer growth and higher equipment sales across Singapore and Australia. EBITDA fell 3 percent in constant currency terms, driven by lower NBN migration revenues in Australia, lower voice revenue, as well as investments in the Group's digital businesses.