Why is there no sound in the headset and why can't I hear the other party?
If you cannot hear any audio and the other party (patient) cannot hear you on your Yealink WH64 headset, please follow these troubleshooting steps:…
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Yealink WH64 Mono, WH64 Dual DECT Wireless Headset User Guide — questions & answers
Read product questions and troubleshooting answers linked to Yealink WH64 Mono, WH64 Dual DECT Wireless Headset User Guide.