Windows 10: Why can't I add my phone number?

I've been trying to add my phone number in my ms account however it always says "Try another verification code". Can you help me fix this

:)

 

unlock sim t-mobile lumia 521

Thanks for your suggestion, but this is a prepaid phone --- no contract. As I said T-Mobile lists the number under an unknown carrier and suggested I contact Microsoft.

 

Blocking Cell Phone Numbers

Here's one way to get around the problem. It's kludgy but it should work.

Get a VOIP based phone service or a magic jack. For 24/7 access, you're better off with VOIP that uses an ethernet adapter, but that's up to the user.

The important point is to find one that lets you create your own "black list" of callers. Usually they will have both black and white list options and these are usually a subcategory under the "do not disturb" or similar feature.

The provider will usually let you create a second number for $5-10 per month. You'll use this for your cell phone number. If it is ever compromised, you can change it easily without affecting the base number.

Forward the second number to your cell phone and give everyone that one as your "cell phone" number. There will be a delay of a few seconds as calls get routed, but who cares. It's not like any of us is on Obama's speed dial right?

Now when you get assholes calling you, just add them to the black list.

You can also block calls w/o caller id this way if your cell phone co. doesn't already do that for you.

 

"Other" phone numbers not syncing

I use Office XP/2002 and have many listings in the "Other" phone number field ... none of which will sync with ActiveSync 4.5 on my AT&T Tilt with WM6. Home, mobile, work, pager, fax, home2, work2, etc. all sync fine ... just not Other. Any suggestions?
Thanks!