2647| 4
|
[讨论] 请问:PSTN话机的RING/TIP两条线分别在什么情况下走什么信号? |
| ||
发表于 2006-10-14 17:48:00
|
显示全部楼层
| ||
发表于 2006-10-20 17:13:00
|
显示全部楼层
| ||
Archiver|手机版|小黑屋|52RD我爱研发网 ( 沪ICP备2022007804号-2 )
GMT+8, 2024-11-27 04:00 , Processed in 0.045676 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.5
© 2001-2023 Discuz! Team.