Receiving Loudness Ratio

Handset

This one can be adjusted to fit the customer needs, but the recommended value is 2.4dB, in order to fit ITU-T recommendation (3dB +-3.5dB).

Hands-free

This one can be adjusted to fit the customer needs, but the recommended value is 3.7dB, in order to fit ITU-T recommendation (3dB +-3.5dB). A volume as high as -17.3dB of attenuation can be achieved if needed.