channel of communication
noun[C]
ukuspluralchannels of communication(alsocommunication channel)COMMUNICATIONS
asystemormethodthat is used forcommunicatingwith otherpeople:
The mostcommonchannelsofcommunicationused byonlinebusinessesareemail,newsletters, andlivechat.
Unionleadershopedthemeetingwouldopenup achannelofcommunicationbetweenstaffandmanagement.
In thistypeofdispute, it isimportanttokeepthechannelsofcommunicationopen.