the exchange of information and messages between an organization and other organizations, groups, or individuals outside its formal structure. The goals of external communication are to facilitate cooperation with groups such as suppliers, investors, and shareholders, and to present a favorable image of an organization and its products or services to potential and actual customers and to society at large. A variety of channels may be used for external communication, including face-to-face meetings, print or broadcast media, and electronic communication technologies such as the internet. External communication includes the fields of PR, media relations, advertising, and marketing management. Source: BNET Business Dictionary
In business external communication is communication with people outside of the company. Internal communication refers to communication within the business.
In telecommunications, asynchronous communication is transmission of data, generally without the use of an external clock signal, where data can be transmitted intermittently rather than in a steady stream
challeges facing external communication
definition of optical satellite communication
what is the definition of communication channels and their effectiveness & limitation
external communication is usually more formal. External communication is an extension of the organization and can be an important channel for marketing the company's image, mission, products, and/or services.
Vocal communication
The definition of downward communication is passing on of information from the top to the bottom. This is the mode of communication in most organizations.
The definition of superficial communication is the communicating of what one is concerned with. Superficial communication is also comprehending what is obvious.
Intergender communication is communication between the sexes.
communication system
There are two schools of thought on interpersonal communication. The traditional definition is face-to-face communication between two people. An emerging definition is communication between two people who know each other very well.