No one can hear me on Skype for Business but I can hear them

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Hi wang8231,

Are you using the regular Skype app or the Skype for Business? What’s the Skype version you’re using?

I look forward to your reply.

Thanks.

i am using skype for business. not very sure about the version. is it something like 16.0.8431.2110? Actually, my skype was working for couple of days, and then no one can hear me any more.