- Bell Telephone company connects US together by laying copper phone wire
- 56 kbit/s data transfer rate
- Circuit switched
- Bell first company to be added to the public switched telephone network (PSTN, aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators)
![](http://www.slate.com/content/dam/slate/blogs/the_vault/2015/03/16/LgTelephoneMap.jpg)