Stavros, just to make sure we all understand...
Basically, you support a Customer and only provide a small range of phone numbers they are allowed to use as the ANI for outbound calls.
They are taking advantage of the ability to type in any phone number they want in the Voice tab on the queue configuration, even though the nukmbers are not in the allowed range (they are spoofing numbers that do not belong to them).
You tried to use the Trunk configuration to change the numbers back to the correct range, but it did not work using the regular expression option in Identity.
Question - do you need other users and entities to be able to supply their DIDs as the ANI on outbound calls? Or, can you restrict everything to just one phone number as the ANI for the organization?
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George Ganahl GCP (Genesys Cloud), ICCE
Principal PS Consultant
Genesys
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