| Subject | English | German |
| comp., MS | Conversational MOS | Gesprächs-MOS (A prediction of the narrowband conversational quality MOS (MOS-CQ) of the audio stream that is played to the user. This value takes into account the listening quality of the audio played and sent across the network, the speech and noise levels for both audio streams, and echoes) |
| comp., MS | conversational quality MOS | MOS für Gesprächsqualität (A class of MOS values that takes into account listening quality in each direction, as well as bidirectional effects, such as delay and echo) |