communication_channel
1. [ noun ] (often plural) a means of communication or access
Synonyms: line channel
Examples:

"it must go through official channels" "lines of communication were set up between the two firms"

Related terms: communication liaison back_channel lens plural transmit
Similar spelling:   communication_trench
  communication_theory
  communication_system
  communications_satellite
  communications_network
  communications_protocol
  communication_equipment
  communicating_artery