FIELD: information technology.
SUBSTANCE: when making a call with the opposite terminal device, a data transmission channel is established over the voice channel to provide a call session with the opposite terminal device; the interaction information provided by the call end opposite to the noted one of the two ends of the call according to the data transmission channel is displayed at one of the two ends of the call, the interaction information is intended for coordinating and interacting between the two call ends based on the call content. In the call method for ensuring the high efficiency of the information interaction between the two sides of the call, the information interaction is performed by a combination of a data transmission channel and a voice channel.
EFFECT: increased effectiveness of information interaction between the two sides of the call.
33 cl, 20 dwg
