During times of high use, the standard number for dial in to a Webex meeting via phone may not work.  It might be busy or have poor sound quality.  You can try other numbers to get a better result.  Here are the known Webex numbers as of March 2020:


United States Toll (Chicago)+1-312-535-8110
United States Toll (Dallas)+1-469-210-7159
United States Toll (Denver)+1-720-650-7664
United States Toll (Jacksonville)+1-904-900-2303
United States Toll (Los Angeles)+1-213-306-3065
United States Toll (New York City)+1-646-992-2010
United States Toll (Phoenix)+1-602-666-0783
United States Toll (Seattle)+1-206-207-1700
United States Toll (Washington D.C.)+1-202-860-2110

These numbers can be dialed with your conference code and attendee ID from Webex

How to provide a call-in number for a WebEx meeting

Sign in to your personal room


Right next to "Personal Room" click the copy icon to copy the meeting info, paste it in the email/calendar meeting invite.


The second way is by clicking "more ways to join" depicted in the picture above. Below is the information you will be provided to give to your meeting attendees.