That is Genesys Cloud saying it cannot find the To: address on the call.
Have you looked at the SIP; packets to ensure the correct DNIS is being sent in the correct format?
Is the DNIS as sent recognized by a Number Plan associated with the inbound trunk?
Is that inbound trunk associated with a Site?
Is the 404 coming from the SBCs because the address is not the correct format for the Trunk (FQDN, TGRP, DNIS...whatever the trunk setting is)?
------------------------------
George Ganahl GCP, GCSME, ICCE, ICHD, etc.
Executive Adoption Consultant
Genesys
------------------------------