AT&T is all set to buy the U.S. wireless carrier T-Mobile for $39 billion, form Deutsche Telekom.
If the deal gets approved by the federal antitrust regulation, then AT&T will move the T-Mobile subscribers to AT&T phones.
The T-Mobile 3G users will have to switch to AT&T phones, and those subscribers who are using the 2G services need not change in order to work on the network.
The subscribers might have to pay some activation fee, before switching to the AT&T network.
Advantages for the subscribers
The merging of the two telecom giants will be an advantage for the customers. AT&T has a broad range of customers, as compared to T-Mobile.