A method of transferring communication between communication channels of differing bandwidth comprises establishing data communications on a first channel having a first bandwidth, establishing data communications on a second channel in response to a trigger indicating changes in the data to be communicated, wherein the second channel has a bandwidth providing resources different from the first bandwidth of the first channel. The method further comprises responding to the discontinuation of an in-progress mixed-media call that transmits data using a first and second media by initiating a second call not supporting the second media.