Resolved after 1 day 1 hour, affecting Local ISUP and Local ISUP, on July 13, 2026.
This incident has been resolved, and we are no longer observing call failures over our Lumen ISUP trunks.
Affected components
Update timeline
- investigating Jul 13, 2026, 06:31 PM UTC
We are currently investigating outbound calling degradation to our local ISUP trunk platform for outbound and inbound calls. This is for local calling in the Phoenix Metro only on the Local ISUP trunks.
- identified Jul 13, 2026, 08:15 PM UTC
We have identified the issue and we are working with the carrier at this time. More updates will follow when information becomes available.
- identified Jul 13, 2026, 08:20 PM UTC
Carrier has identified the issue and they are working upstream for a fix at this time.
- identified Jul 13, 2026, 09:35 PM UTC
Our carrier is still working with the downstream carrier at this time.
- identified Jul 14, 2026, 02:17 PM UTC
Our carrier has identified the underlying transport issue on their network causing the outbound call degradation, and is working to resolve as soon as possible.
- monitoring Jul 14, 2026, 04:24 PM UTC
Our carrier has reported that a fix has been implemented, and we are monitoring the results.
- resolved Jul 14, 2026, 07:58 PM UTC
This incident has been resolved, and we are no longer observing call failures over our Lumen ISUP trunks.
Your product runs on more than Reinvent Telecom
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.
Amazon Web Services