Lumen help
The direct-trunk-overflow (DTO) feature ensures callers terminate with a DID/ANI ring-to number and have the opportunity to speak with someone.
To remove DTO overflow from a routing plan:
Important: We recommend you schedule your call plan an hour before the activation time. After it has been scheduled, you are unable to edit the plan. If you want to make changes after the plan has been scheduled, you need to wait until the changes go into effect and then you can change it.
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