Mluck1ng, happy to help answer your questions about the Network Extender. Currently, we've got the 4G LTE Network Extender available. It uses both a home internet connection and 4G signal, to help when you've got less than ideal indoor coverage. It wouldn't make use of 3G signal, as the CDMA network is being retired at the end of 2019. As we retire the CDMA portion of the network, it will allow us to expand and improve the 4G LTE Network.
All the specs and requirements for the 4G LTE Network Extender can be found under 'Features' on the extender's sales page: http://spr.ly/6607EW1VJ