There’s an Ooma gateway in your region that interfaces their VoIP service onto the traditional telephone network. That gateway is responsible for signalling your caller ID into the network too.
Your customers are likely looking for “XYZ Company” caller ID for their own internal routing and call handling.
Contact Ooma tech support and let them know what the issue is.
Well, they aren’t my customers; they’re companies of which I am a customer myself.
If it happens again, I’ll talk to Ooma.
Thanks.