COMMUNICATION SYSTEM, END DEVICE, AND METHOD FOR ESTABLISHING A COMMUNICATION CONNECTION BETWEEN A FIRST END DEVICE AND A SECOND END DEVICE

摘要

A call comprising a first end device (2) and a second end device (3) in a communication network (4), the first end device (2) being adapted to establish a first communication connection (5) to the second end device being performed via a first communication path (5a) and a second communication path (5b), the first communication path (5a) being used for a voice and/or video stream, and the second communication path being used for a data stream, the first end device (2) is adapted to establish a second communication connection (6) simultaneously to the first communication connection (5) to the second end device comprising at least a third communication path (6a) being used for the voice and/or video stream redundantly transmitting the same voice and/or video stream as the first communication path wherein during the call, the first end device is adapted to continuously evaluate the quality of both voice and/or video streams and to select from the first and third communications paths (5a, 6a) the one with the better quality of the voice and/or streams as an active voice and/or video stream for output.