| 1. | Digital phone lines can carry large amounts of information
数字电话线可以传送大量的信息。 |
| 2. | Digital telephone exchange txd
数字电话交换机 |
| 3. | Digital telephone network dtn
数字电话网络 |
| 4. | Digital telephone networ
数字电话网 |
| 5. | In the fifth chapter , designs a digital leave word telephone adopted g . 729a standard
第五章设计了采用g 729a语音编码标准的数字电话留言系统。 |
| 6. | Higher - speed connections using cable modems or digital phone lines appear safe
而更高速的互联网接入，如通过使用电缆调制解调器或数字电话线，就显得较为安全。 |
| 7. | This percentage is obtained by dividing the number of main lines connected to digital telephone exchanges by the total number of main lines
这个百分比通过连接到数字电话交换机的主线数除以主线总数得到。 |
| 8. | Ip ( internet protocol ) phone is a kind of digital phone . it takes new creative technology and becomes a carrier voice service
Ip ( internetprotocol )电话是一种数字电话，是技术创新的一种电信话音业务。 |
| 9. | If the existing call is a data call , aco provides the ta or router with the option of dropping the data call , in favor of the incoming voice call
如果现有的呼叫是数字电话，那么aco向ta或路由器提供挂断数字呼叫的选项而选择呼入的语音电话。 |
| 10. | In 1996 , by using wdm technique , te local fiber network , which belonging to jinzhong region post and telecommunicatio of sanxi prvince , have been upgraded . with the upgraded system , the feasbility , techinical project reaization and system running , which are related to both the digital telephone signal transmssion and high quality television signal transmission in an uniform fiber , have been demonstrated
1996年完成山西晋中地区在光纤本地网上采用光波分复用（ wdm ）技术，实现同纤传输数字电话业务和高质量彩色电视信号的技术方案论证实施和开通。 |
