I live in a rural area and cannot use my cell phone at home so my sister, told me about a cell-phone booster (Airave) that she uses, but her service provider is Sprint and I use Credo and neither of us were sure whether or not this booster device is cell-phone or service-provider specific. I participated in an online chat with a person at Best Buy and they kept saying that the Airave would support my Samsung phone, but English was not this person’s native language and I couldn’t find a way to make them understand that I was asking specifically – not about my cell phone equipment, but about my service provider. I need to know if I had to be a Sprint customer or would it work with any service provider so I sent an email to Credo customer service and not only did they confirm that the equipment was compatible, but they also provide it to their customers free of charge. They put one in the mail to me via overnight express mail and I received it in two days. How awesome is that for customer service? Once again, I cannot say enough about how pleased I am with Credo.