Taiwan Mobile is basically a wireless telecommunication operator based in Taiwan. It's the second most popular telecom company behind Chunghwa Telecom, which also happens to be the largest in Taiwan. As a Taiwan Mobile subscriber you can either buy pre-paid plans or download a special software for free. The software is an app which enables you to make and receive calls and send text messages at cost free of charge. This means that unlike regular mobile phones, you never have to pay additional monthly charges for SMS or MMS messaging and voice calling.
Another way that Taiwan Mobile keeps costs low is by using VoIP technology. VoIP (Voice over Internet Protocol) is simply a call over the Internet which is then forwarded to the destination. As Taiwan has a fixed-line telecommunications network and no cable TV or DSL connections, VoIP is actually the most cost-effective means of communication available. The service provider, Taiwan Mobile, charges only for minutes used and so it is essentially free to anyone who wishes to make calls.
Taiwan Mobile offers a range of services including pre-paid and post paid SIM cards for both domestic and international calls. There are also cheap plans for local calls and Taiwanese locals have been known to prefer this low cost of living compared to other telecommunications. This low price and high-speed internet accessibility have seen Taiwan Mobile and Chunghwa Telecom become partners in creating a 'high-tech' Taiwan, complete with cable television and internet services. There have also been efforts by the two giants to woo more tourists to Taiwan by offering discounts and special packages to travelers.