But since each caller still occupies a line, the limitation on the number of phone lines is still a problem. Internet requires that the security exchange system be connected to the Internet. Investors can trade online through a web browser. No phone line is required on the brokerage office. This method allows investors to trade any time and from anywhere.
Investors can stay online all day long without worrying about being disconnected.
Although Brokerage office can be protected by firewall, the security of individual investors can not be guaranteed. To make the problem worse, US government restricts the export of 128 bit coding software. Users from outside of US can't download any browser with 128 bit encoding. On the other hand, Chinese government forbids the commercial use of any foreign encoding program. Coding and decoding software developed in China must be embedded into foreign browser and web server before they the system can be used.