Unable to call into an International Toll-Free Number using a cell phone.
Customer may receive a voice error indicating 'The number you have dialed cannot be reached from your calling area'.
This may be caused if the country restricts cell phone calls to toll-free phone numbers.
If possible, schedule the meeting using the call-back option or ask the attendee to call in using a landline. Depending on the country, it may not be possible to dial a toll-free number from a cell phone.
See the Toll-free Restrictions document below: