The transmission, between or among points specified by the user, of information of the user's choosing, without change in the form or content of the information as sent and received; the use of wire, radio, optical, or other electromagnetic channels to transmit or receive signals for voice, data, and video communications.
This category has only the following subcategory.
Pages in category "Telecommunications"
The following 85 pages are in this category, out of 85 total.
Media in category "Telecommunications"
This category contains only the following file.
- Radio transmission wav...