一般宽带故障处理手册.doc

一般宽带故障处理手册
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliangardize internal management, improve staff quality. Adhere to the
一般宽带故障处理手册
ADSL上网中常见问题答案(一)
1、 使用ADSL上网会使电话效劳的质量下降吗？另外，打电话是否会导致上网速度下降？
答：ADSL设备采用频分复用技术将电话音与数据流分开，互相不干扰。实际线路测试结果说明，安装ADSL的电话与普通电话的语音没有任何区别，在传输数据信息时，提起话机、挂断电话或随意通话，传输速率都保持不变。
2、 为什么有时候ADSL访问速度并不比普通拨号Modem快多少？
答：导致ADSL访问速度慢的原因有如下几种：
〔1〕 如果访问国外站点，访问会受到出口带宽及对方站点配置情况等因素的影响；
〔2〕 由于ADSL是一种RADSL〔即速率自适应ADSL〕，如果机房大楼到用户间的电话线路在某段时间受到外在因素干扰，RADSL会根据线路质量的优劣和传输距离的远近动态地调整用户的访问速度。
ADSL上网中常见问题答案(二)
3、 为什么有时虚拟拨号会失败？
答：在ADSL虚拟拨号软件时，可能会出现以下几种错误信息：
〔1〕
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air d