I have a new flynumber - I chose a “mobile” number in Mexico City so I understand SMS should be supported. But I tried to add the flynumber to my Whatsapp and it supposedly sent a verification SMS and I never received the SMS. I checked my email - nothing from flynumber. Is this a known issue or will it just not work? This is the whole reason I purchased a flynumber account.
Thanks for posting and we can’t guarantee sms verification will work although we have seen decent results from whatsapp.
Perhaps there is a verify by phone option?
Another option is WhatsApp business which we have seen work well.
More details here