client are expericing voice hatching : every thing looks good in dashboard  ( all is green!) VOICE CALL full web to AWS and salesforce . no latency, no high usage of ap . WIFI is only on 5Ghz and 20Mhz channel wide. clients are well dispatched into differents AP cell ( 24 clients ap1, 20 on AP2.... ) ; all devices are macbook pro snr is optimal . any idea ?          ... View more