This document applies to original vehicle hands-free systems, later-installed vehicle hands-free accessories, wired headset-microphone sets, and wireless headset-microphone sets.
YD/T 2308-2022 history
2022YD/T 2308-2022 Transmission performance requirements and test methods for vehicle-mounted narrowband voice communication equipment
2011YD/T 2308-2011 Transmission performance requirements and testing methods for narrowband voice communication devices in vehicle