News bites: Twitter in talks with Viacom, NBC

Two billionaires, Dish Chairman Charles Ergen and SoftBank CEO Masayoshi Son, are duking it out for control of Sprint, The Wall Street Journal writes.

Dish's offer to buy Sprint could prompt other telecoms or video companies to weigh the prospects of merging, Reuters writes.

Huawei is aiming to become a leader in the global smartphone market, The Wall Street Journal says.