They cannot be active at the same time with current software .
Concurrent operation is planned for a future release of the software.
Microphone needed for full-duplex speakerphone feature Any standard unidirectional electret mike will do. If you have a dynamic microphone, you may have to turn off your monitor while using the speakerphone, due to interference. Yes, assuming both your PC and music software can handle it. The COMM port can be assigned as COMM 1 through COMM 8, or it can be disabled. This item enables the selection of available MicroChannel Arbitration levels.