A colleague will be presenting a webinar using a MacBook Pro and I will be facilitating from our office. This is the third in a series she is doing and we have had no problems in the past. However, when we did our dry run yesterday I could hear her but she could not hear me. She is currently travelling in Europe, so I tested the sound on another colleague's laptop (also a MacBook) and there were no problems. Any ideas as to why my colleague in Europe could not hear me? She said her speakers were on and she was not using a headset.
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