This creatable/settable object configures the requested residual bit error ratio (BER) as part of the profile's QoS parameters, indicating how many bit errors per bit transmitted the application can tolerate after error correction. An admin sets this to specify a lower-level error tolerance than SER, relevant for the profile's radio-link error-correction behavior. For example, a profile for highly error-sensitive data might request a stricter (lower) residual BER than a profile carrying more error-tolerant traffic.