An alternative to the regular channels of communication that is used when agreements must be made secretly (especially in diplomacy or government); "they negotiated via a back channel"
Full Name: Description: To enable interactive and Pay TV services, a direct communication channel between the broadcaster or service provider and the consumer is needed Normally this "Back" or "Return channel " is realized via the normal telephone line
secret or indirect means of communication; return link in a two-way data channel, channel which carries data in the direction opposite that of the primary channel (Telecommunications)
A back channel is a term that applies to asymmetric data connections It is the slower of the two data paths, or directions, in the connection Often times, as with ADSL and 56Kbps modems, the back channel is transmitted over the same set of wires or other media as the larger of the two data paths In other cases, such as with satellite downlinks and some cable modem systems that use a modem and the telephone system to carry the back channel, the data is returned via a different transmission media
an alternative to the regular channels of communication that is used when agreements must be made secretly (especially in diplomacy or government); "they negotiated via a back channel