LG G2 (Verizon)
No data teathering......NO HD voice...T-MOBILE's is better
HD Voice is a network issue more than a phone issue.
In the context of cell phones, tethering is connecting your phone to a laptop or similar data device using a data cable, usually for the purpose of connecting to the Internet on the laptop, via the phone's wireless connection to the cell phone network.
Some phones may allow accessing the Internet on the phone itself, but not via tethering.