论文部分内容阅读
所谓网络电话,就是用户利用互联网在网上收发传真、双方通话甚至是可视电话.她的出现,并不是一种偶然的发现,而是现代信息产业发展的必然;网络电话对传统电话的挑战也不是一般意义上新产品对老产品的挑战,她代表着一种趋势,预示着一个新时代的到来.随着因特网技术的成熟和普及,世界上开始流行使用网络打电话的时尚,各国电信公司纷纷开始涉足于该领域,甚至象AT＆T这样的老牌电信公司都不敢懈怠,也急忙推出网络电话服务.原因相当简单,网络电话具有一系列优势,其中最突出的一个优势是网络电话的通讯费用比普通电话要便宜得多,在因特网上打国际、国内长途电话,其长途话费是电信公用电话费用的20%.难怪有人惊呼,运行了100多年的普通电话正在遭受网络电话的强烈冲击!
The so-called Internet phone, that is, users use the Internet to send and receive faxes online, the two sides call or even video telephony. Her appearance is not an accidental discovery, but the inevitable development of the modern information industry; VoIP challenge to the traditional telephone Not the general sense of new products on the challenges of the old products, she represents a trend, indicating a new era.With the maturity and popularity of the Internet technology, the world began to fashion the use of Internet calling fashion, national telecom companies Have started to get involved in the field, and even veteran telecom companies like AT & T are afraid to slack off their hurdles and launch Internet telephony services in a hurry. The reason is quite simple. VoIP has a series of advantages. One of the most prominent advantages is the cost of communication over Internet telephony It is much cheaper than regular telephone calls, making international and domestic long-distance calls on the Internet, with long-distance charges of 20% of the cost of telecom public telephones. No wonder someone exclaimed that ordinary telephones that have been in operation for more than 100 years are suffering from the strong impact of Internet telephony!