The techniques described herein are directed to cross-channel communication. The techniques can employ a central method, system, or mode ("Cross-Mode Manager" or "CMM" herein), which is enabled to send and/or receive messages over a multiplicity of modes. Users can enable the CMM through a variety of methods described herein on modes which the user uses to communicates. Once enabled on at least one channel which the user uses to communicate, the presence of the CMM across a multiplicity of modes allows a user to create and/or join a cross-channel communication session maintained by the CMM and to communicate between the user's communication mode and any of the multiplicity of modes for which the CMM has a presence. In other words, the techniques permit users to communicate across disparate channels from within a channel of their choosing.