Comodo needs to verify that you have a working, listed phone number
Telephone Verification is a requirement for both Organization Validation and Extended Validation SSL certificates. Basically, Comodo needs to verify that you have a phone number that is working, and that you're listed in a trusted directory.
How do I satisfy the Telephone Verification requirement?
Telephone verification is easy-just make sure your phone number is listed. Pretty much every business has a phone number. So as long as consumers can find it, you should be good. The first way Comodo is going to attempt to verify your telephone number is by checking your local online government database. If the number is listed and the rest of the listing matches the details you've provided then you're golden-you've satisfied the requirement.
My number isn't listed in the government database
No worries. There are other methods to satisfy this requirement. In fact, most people run into this problem. Comodo will also check a group of trusted third-party directories. These directories are:
- Dun and Bradstreet
Professional Opinion Letters work too
If you don't have your number listed in one of those directories and it's not publicly available in a government database, you can also provide a Professional Opinion Letter. Professional Opinion Letters, sometimes called Legal Opinion Letters, are notarized forms wherein an accredited attorney or accountant vouch for the legitimacy of your business or organization. Submitting a Professional Opinion Letter actually satisfies most of the validation requirements for OV and EV SSL.
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