Translation of "communication channel " (English → French) :

VFR flights operating in parts of Classes E, F or G airspace and IFR flights operating in parts of Classes F or G airspace designated as a radio mandatory zone (RMZ) by the competent authority shall maintain continuous air-ground voice communication watch and establish two-way communication, as necessary, on the appropriate communication channel, unless in compliance with alternative provisions prescribed for that particular airspace by the ANSP.

in particular, the selective messaging channel of the EWRS provides an exclusive communication channel for the exchange of personal information between the concerned Member States only.

To this end, the so called ‘selective messaging’ channel has been built into the EWRS to guarantee an exclusive communication channel between the Member States concerned by a given contact tracing measure.

2. In case of detection of any incident that has or may have an impact on the security of SIS II, the Local Security Officer for the Communication Infrastructure shall inform as quickly as possible the System Security Officer and, where appropriate, the single national contact point for SIS II security, if such a contact point exists in the Member State in question, in writing or, in case of extreme urgency, via other communication channels.

2. In case of detection of any incident that has or may have an impact on the security of the operation of VIS, the Local Security Officer for the central VIS or the Local Security Officer for the communication infrastructure shall inform as quickly as possible the System Security Officer and, where appropriate, the single national contact point for VIS security, if such a contact point exists in the Member State in question, in writing or, in case of extreme urgency, via other communication channels.

Communications can come in many forms such as text, voice, and video and, for command and control purposes, their infrastructure must be in place and be as robust as possible, so as to preserve communication channels even in emergencies when some forms may be incapacitated and sufficient redundancy must be built in to cater for the loss of particular systems (e.g. telephony) or premises or a collapse due to excessive traffic (e.g. computer system or Internet crashes). In the case of a major public health emergency, existing wired communications infrastructure might have been damaged or destroyed, preventing the use of wired networks for ...[+++]communications. Alternatives must be provided, including wireless transmission.