A:Answerit work just like any other cell service. but once you put it in you will need to activate it online and then choose what prepaid plan you want to use (and pay for) before the service will start.
A:AnswerNo it does not. VOLTE is built into the phone by its manufacturer. This is shown in phone specs under the frequencies that is covered by that phone.
A:AnswerThe SIM will fit. The question is whether your phone works on the AT&T network which H2O rides on. The question text is insufficiently detailed to provide an answer. Fill in the details of your model and submodel at willmyphonework dot net . Alternatively, use the live chat option to ask at h2owirelessnow dot com
