e-Call 188 service is the other type of international calls with lower and cheaper price using only within ETL network such as PSTN (Fix phone) and mobile phone (Post and Pre Paid Systems) by pressing 188 in the same rate all over the world which it is only 1.999 kip/minute. e-Call 188 service is very popular among customers because of its more conveniences, faster and the best quality by using high and new technological equipment. Calling capacities have been significantly increasing as its service is more flexible for customers in terms of easy-usages.