TCP标准通讯，技术成熟可靠，传输速率快，各种配套的网络设备十分丰富，

使用者接受程度最高， 全球免费使用，是区域无线通讯的首选方案。-TCP standard communications, technology is mature, reliable, fast transfer rates, various ancillary network equipment is very rich,

Highest user acceptance worldwide free of charge, is the preferred program area wireless communications.