or T-MO corporate retailers can only answer questions if the answer is on the equipment's box or in store displays.
I went to two different corporate stores in Jacksonville, FL to find out which equipment can use a service called Caller Name Display (Caller Name Display lets you see the names and numbers of your callers, even if they’re not in your address book.) Both managers responded

As you can imagine I was

The first manager thought I was speaking in a tongue only understandable if you are from area 51. The second manager used T-Mobile as a scapegoat by saying I do not know any additional information about equipment or services unless it is on the box. (I was looking at a 4G android) I bluntly asked him what phone he uses and he responded a T-MO issused BB. I thought to myself expletives.
People I understand each carrier rolls out no less than one billion units of new or upgraded equipment or services per hour per day including all holidays. It is somewhat difficult to keep up with the one billion units of new or upgraded equipment or services per hour per day including all holidays. For retail management to tell a potential customer unless the information is printed on the box I have no ... idea wtf you are talking about is pure indolence. Then use T-Mobile HR as the scapegoat for the reason why the don't know their product lines. To me this is very

.
For those of you who know what equipment and service you want you want to purchase use the following KISS method. Go to the website, put in the cart the equipment, accessories, plan and services you want, print it, go down to the corporate location with identification and plastic in hand and say, Sir/Madame I want to purchase service with T-Mobile here is all of the information you'll need. Moreover, you exit the store with the equipment and services you wanted as sane as you walked in.