Korean telecommunication companies have agreed to install a phone service between South Korea and an industrial park in North Korea –­ the first direct line between the two countries since they were divided by war in the 1940s. South Korea's main telecommunications provider KT Corporation has agreed with North Korea's Korea Post and Telecommunication Corporation to charge 40 cents per minute for fixed line phone service to the Kaesong industrial complex in North Korea starting May 31. The phone line will be directly connected from South Korea to Kaesong. Earlier, calls from South Korea to North Korea could only be made through Japan and cost more than $2 per minute.