Choose the Dial-in Number Using Lync in Microsoft Outlook
Microsoft Lync 2010, formerly Office Communicator 2007, provides a single interface that unites voice communications, IM, and audio, video, and Web conferencing into a richer, more contextual offering. With the Lync Add-in for Outlook, you can schedule a conference call or meeting inside Outlook.
A default dial-in number is used based on your location setting.
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Join online meeting
https://join.microsoft.com/meet/\<username>/xxx
Join by Phone
+1 202-xxx-xxx
Conference ID: xxxxxxxxxxxx
Forgot your dial-in PIN? | First online meeting?
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However, if you know that most attendees will call from, say Reston Virginia, you can change the dial-in location and optionally save the change. The call info is automatically changed to the new location.
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Join online meeting
https://join.microsoft.com/meet/\<username>/xxx
Join by Phone
+1 703-xxx-xxx
Conference ID: xxxxxxxxxxxx
Forgot your dial-in PIN? | First online meeting?
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The Online Meeting Options is available when you create a new appoint and click on Online Meeting. It’s not easy to find the place to change the number. So I hope this post helps me remember it .