This paper is aimed at providing policy direction to facilitate export and overseas market entrance, centered on Korea`s mobile telephony sector. Despite the increased opportunities to make new inroads in the overseas mobile telephony markets after the enforcement of the WTO Agreement on Basic Telecommunications, Korea`s progress in export and overseas market entry has been insignificant. It is observed that the main obstacles for expanding exports of system and equipment are the excessive royalty for using the CDMA source technology, the reduction of export price, and the lack of export financing support. In addition, the shortage of overseas business experiences and poor ability of mobilizing investment resources deter Korea`s service providers from participating in the foreign mobile telephone services market. Paper shows that early development of source technology, and diversifying products and regions for export are necessary for export increase in system and equipment. More aggressive perception on overseas businesses is a prerequisite for promoting overseas market entrance. It proposes that service providers go with equipment manufacturers in making successful overseas market entrances. The government needs bolstering export and overseas market entrance through export financing scheme which can activate buyers` credit.