Can I transfer money to some other walmart through my phone?

Yes

Yes you can transfer from Walmart to Walmart just have to have address of other Walmart.

Call customer service and see what they can tell you is the only way to find out as far as I know

I'm not sure if it's possible through the telephone you might have to go in and do it like a MoneyGram

I'm not sure either tbh, but as Steve said, I don't believe you can

I don't believe you can do that through your phone. If you call them I'm sure they can tell you