How to add Japanese mobile phone number to facebook profile?

[Az]

I want to put my phone number on my profile. But if I try to add it as a mobile phone, when I put in my number, Facebook tells me I need to add a valid mobile phone e-mail address. But I don't want to put my e-mail, I want to put my number so my friends can see it. If I add my number in the list of "Other Phones" it has to be listed as a Work or Home phone. But it's a mobile.