电话的小型化　多功能　全球性美国贝尔电话实验室根据一专题调查报告指出，未来２０年内，全球电话设备市场将出现重大变化。袖珍电话将充斥市场。美国、欧洲和日本已有近２０家大公司在这方面不吝投资，美国国内市场展望是：２０１０年全美国将有一半的电话用户拥有无线... Phone miniaturization Multi-functional Global Bell Telephone Laboratory According to a special survey report, the global telephony equipment market will undergo major changes in the next 20 years. Pocket phones will be flooding the market. Nearly 20 large companies in the United States, Europe and Japan have invested heavily in this area. The domestic market in the United States is expected to have 50% of all telephone users in the United States in 2010 ...