back-channel

English Thesaurus

1. via a back channel (adj.pert)

pertainym	:	back channel,
definition	:	an alternative to the regular channels of communication that is used when agreements must be made secretly (especially in diplomacy or government) (noun.communication)

pertainym	:	back channel,
definition	:	an alternative to the regular channels of communication that is used when agreements must be made secretly (especially in diplomacy or government) (noun.communication)