The final requirement for Extended Validation SSL Certificates is the Verification Call. The Certificate Authority must speak with the Admin Contact using the verified business telephone number to confirm the details of your order.
Completing the Verification Call
This is very simple, the CA is just going to call the number it verified earlier in the process to confirm your order. It takes five minutes, tops.
If the listed telephone number doesn’t ring directly to the Admin Contact’s desk – as is often the case – don’t worry. The CA will attempt to work through the phone system and contact them using the below alternative methods.
Extension or IVR
If the phone system uses extensions or Interactive Voice Response (IVR), then the CA will work through the phone system to connect to the Admin Contact. So, if their extension is listed (or they’ve previously provided it to the CA) or their phone can be reached by the IVR, it’ll be alright.
Transfer or Alternative Number
If they don’t have an extension or IVR, the CA can also have the receptionist (or whoever answers the business phone number) transfer the CA to them or provide the CA with their direct number.
Please Note: Mobile numbers can be used, but ONLY if they are given to the CA when they call the verified business phone number on the verified listing.