CID Spoofing for my Business

We would need CID spoofing for our remote workers to show our businesses number instead of a random one. How would I tackle this problem? Thanks.

Let’s start with

Where is your business?
Who do you pay for your business number?
Who do you pay for other phone service?

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Have the workers connect privately to your PABX (e.g a remote SIP extension), which is then connected over a line with the desired caller ID, so that no spoofing is involved.

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If the remote IP phone, softphone or SIP app won’t work for you, see https://sangomakb.atlassian.net/wiki/spaces/PG/pages/22446287/DISA+User+Guide