selective ringing मीनिंग इन हिंदी

उदाहरण वाक्य

1. Some non-Bell Company system party lines in the US used multiple frequencies for selective ringing.
2. Another selective ringing system was based on using different ringing frequencies for each station on the party line.
3. In North America, this was used mostly by independent telephone systems, while the Bell System abandoned frequency selective ringing in the early 1900s.
4. Key telephone systems also supported manual buzzers, intercom lines ( with or without selective ringing ), music on hold, and other features.
5. All fully selective ringing systems on party lines still brought the inconvenience of finding the line in use occasionally, by hearing talking, when one picked up the phone to make a call.
6. The two subscribers on a two-party line would have separate three-letter then four digit numbers in a special number group, and had selective ringing to the party required only ( code ringing with a letter suffix for the code required was not used ).