We have received information from our Provider:
"Earlier this morning, we became aware of an issue within the Lumen network that impacted audio on inbound and outbound calls. As of 1:40PM EST, Lumen was removed from our outbound routing to alleviate calling issues and take an alternative route. Inbound calling is still affected by this. At this time, we are working with Lumen and escalating the Lumen ticket to higher level management to obtain a faster resolution.
Thank you for your patience!"
We'll update as soon as we get more info from our provider. Outbound calling should no longer be affected.