Just recently, Sprint announced that it is launching the so-called All-In plan that offers a smartphone with unlimited texting, calling and data at a monthly charge of $80. It is even releasing a new video commercial showing David Beckham endorsing the carrier.

The company's promotional gimmick seems to have caught a great deal of attention, particularly from John Legere, T-Mobile's CEO, who then expressed his thoughts over Twitter.

"I give credit to @sprint for swinging the bat when they do — but #allin is a swing and a miss, guys!! #sprintlikehell on.recode.net/1GJm9EE," tweeted Legere.

It's no secret that Legere has been very vocal when it comes to promoting T-Mobile at the expense of rival carriers. However, he may have found himself a new match when it comes to opening up in public in the form of none other than Sprint's CEO, Marcelo Claure.

Naturally, Claure didn't allow Legere to simply send out a tweet without his attention being called.

"I am so tired of your Uncarrier b-llsh-t when you are worse than the other two carriers together. Your cheap misleading lease imitation is a joke ...You say one thing but behave completely different. It's all a fake show. So [it's] really #Tmobilelikehell," said Claure in a tweet.

Both Sprint and T-Mobile have introduced new plans that allow customers to upgrade their devices at a more frequent rate compared with the traditional two-year cycle. Both have also devised ways to attract customers from other carriers to make the big switch while assuring them that the costs of switching will also be covered.

With all the competition between carriers becoming more and more serious, it may be better for each carrier to have a shop on one floor of a building. That way, it would be really easy for a customer to "switch" from one carrier to another.

It also looks like Legere didn't want the "tweet wars" to end just yet, when, on Wednesday, he sent out another tweet with Claure's name included.

"Isn't it cute that Marcelo's been following me on Twitter since joining? Now he's starting to sound like me to get attention — it's working!"

It remains to be seen just how many more tweets will be sent between the two CEOs. There's no doubt, however, that Twitter users will always be up on their toes to get the latest from the carrier wars.