The Toll-Free phone number verification submission has been reviewed and it was rejected. Effective Jan 31st, 2024, messaging traffic on this Toll-Free number is blocked until it's verified.
Resubmit the toll free verification after completion of one of these:
CTIA guidelines can be found here
See Toll-Free best practices for resources on how to implement Toll-Free messaging.
See what happens to traffic if a Toll-Free verification is rejected