188.8.131.52: Speech volume range
Where ICT hardware has speech output, it shall provide a means to adjust the speech output volume level over a range of at least 18 dB.
Fixed-line handsets and headsets fulfilling the requirements of ANSI/TIA-4965 [i.2] are deemed to comply with this requirement.
|Type of compliance||Inspection based on measurement data|
|Result|| Pass: Check 1 or 4 is true
Fail: Check 1 and 4 are false