Seoul – With Korea’s KT Corporation and its mobile service affiliate KTF completing their planned merger this June, the landline and mobile convergence will create an even larger telecom giant, as KT currently has a fixed-line market share of about 90 percent and KTF holds over a third of the wireless market. And the unified KT plans to offer an all-in-one service that combines broadband, IPTV, landline and mobile services. Rival companies SK Telecom and LG Telecom are getting ready for the aftermath of the merger. SK Telecom says it will steer clear of overly-aggressive marketing tactics that could cut into the company’s bottom line. A spokesperson for the telecoms firm said the company will maintain its market share by focusing on service quality, rather than mergers with fixed-line operators. He added that the company is also planning to invest about US$2.3 billion in research and development for the next five years.