My friends and me just ported from ATT to T-mobile on a family plan of 4 people. The thing
is after porting, the lines for three worked fine except for one. This line has text and data
working, but could not make or receive any calls. If I call this number, the call is immediately
dropped, with a message saying this person is not able to answer, not to the voicemail.
From this line it is possible to call the 611 service number, though. Any help is appreciated.
PS: the device is an iPhone 6.