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I have encountered a lot of problems trying to rely on virtual numbers from various VOIP providers. Very curious how that plays in to your stack. I know for instance a lot of Twilio is default blacklisted, but larger ORGS/ISP's who run essentially the same virtual VOIP (such as Comcast) but at different scale have no problems.

Why is there a difference?

Who is determining bad VOIP from good VOIP?

Are there steps you can, or are, taking to work on having your numbers legitimized?

Where are you sourcing your numbers?

I'll take my questions off the air :). Thanks!



I don’t think it is correct to say that twilio numbers are blacklisted - rather, they simply test/lookup as not true mobile numbers.

Which they aren’t.

Your bank then decides not to send codes to non mobile numbers but it’s not because it is a twilio number per se…


> Why is there a difference? Who is determining bad VOIP from good VOIP?

I don't know :(

> Are there steps you can, or are, taking to work on having your numbers legitimized?

Sourcing the phone numbers from a company with a reputation to defend - Twilio - is the main method.

> Where are you sourcing your numbers?

Twilio




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