(Telecompaper) Germany's third largest cable operator, Tele Columbus, expects to launch an initial public offering (IPO) in the first half of 2015, according to news agency dpa-AFX. The company said it plans to raise approximately EUR 300 million, chiefly to reduce its debt in order to enable investments in growth. There will also be a greenshoe option. Tele Columbus has approximately 1.7 million households connected to its network.