^^^ THIS!!
Couldn't have said it better myself.

I will say, late last week 8/26 Level3 had a massive outage... this is outside of VoipO's control as some calls route through Level 3 at some point... I was having lots of issues with other SIP Trunk providers too. Having to explain this to a customer was difficult and I understood their frustration. Happened again briefly last night... around the same time Voipo's service was having issues... thankfully hardly any of my customers noticed last night/this morning.

My boss has me quoting out on-premise non-voip phone systems now for upset customers and new customers.
It's frustrating because my customer's confidence in me has been diminished by outages that were largely outside of our control.
I just hope I can smooth things over.