iPlum provides you a dedicated business line.
For outgoing calls, iPlum sends your iPlum name & number as Caller-ID in every call by default.
If your outbound calls are getting mischaracterized by some carriers and marked as spam, you can use this form to update your caller-id information.
Note: Contact Name, Phone, Company, Email, Calling Company Name, Address, URL is your information on this form so that the carriers recognize you as the rightful owner of this number.
https://www.freecallerregistry.com/fcr/#submitform
Additional helpful links:
How to stop receiving spam calls or text to your iPlum number?