Paolo
2007-03-14, 11:16 PM
Found this on HOFO (http://www.howardforums.com/showthread.php?t=1125813)
This is the easiest explanation why some phones will not work:
Basically it's all in how the number is stored into the phone.
The Cellular system uses 2 numbers to place a call.
The first is known as the MDN. This is the number we all know and love and dial every day.
The second is the MIN. This is a number that the system uses to acctually place the call. This is also the number the carries lease off the government.
Now before WNP, the MIN and the MDN were always the same, and as such any cell phones only needed 1 number to be progamed into them.
When you take your number to another carrier tho, you only take the MDN, (or the dialable number), and your new carrier will assign you a new MIN when you activate. For the end user it does not matter, because all you ever see is the MDN. But, if your phone is not capable of programing the MIN, and the MDN independintaly then you would not be able to activate that phone with your new carrier.
I'm not 100% sure how new the phone needs to be, but if I recall rightly, you can call client care with your ESN and they can let you know if your phone is capable or not. There will probly be a tool avalible on TM.com, or MYTM.com as well.
This is the easiest explanation why some phones will not work:
Basically it's all in how the number is stored into the phone.
The Cellular system uses 2 numbers to place a call.
The first is known as the MDN. This is the number we all know and love and dial every day.
The second is the MIN. This is a number that the system uses to acctually place the call. This is also the number the carries lease off the government.
Now before WNP, the MIN and the MDN were always the same, and as such any cell phones only needed 1 number to be progamed into them.
When you take your number to another carrier tho, you only take the MDN, (or the dialable number), and your new carrier will assign you a new MIN when you activate. For the end user it does not matter, because all you ever see is the MDN. But, if your phone is not capable of programing the MIN, and the MDN independintaly then you would not be able to activate that phone with your new carrier.
I'm not 100% sure how new the phone needs to be, but if I recall rightly, you can call client care with your ESN and they can let you know if your phone is capable or not. There will probly be a tool avalible on TM.com, or MYTM.com as well.