We are not experiencing any known downtime, but if you have specific
times and phone numbers where you are seeing errors, please file a
ticket and we'll follow up outside of this discussion group.
Jesse
https://developer.veriplace.com/devportal/supportLogin
This allows us to communicate privately about the phone numbers you
are using and also ensure that your problems are not forgotten in one
of these group discussions.
Without knowing the precise phones and times you are trying to invite,
it's hard for me to diagnose your problem further.
Jesse