Oregano is a plant. The leaf is used to make medicine. Oregano is used for respiratory tract disorders such as coughs, asthma, croup, and bronchitis. It is also used for gastrointestinal (GI) disorders such as heartburn and bloating.
Dual-Band Cellular/PCS and single-band PCS equipment is compatible with traditional T-Mobile GSM/EDGE service. Other carriers 3G service (AT&T, Verizon Wireless, Sprint PCS, etc) operate on the standard cellular/PCS frequency bands and can use normal dual-band equipment. More information on T-Mobile 3G frequency.
3. Re: Unlocked phones for Verizon Wireless. Voice and text are currently use the CMDA network so that's why a GSM phone won't work on Verizon. Unless you don't care about calls or texting. VoLTE will use Verizon's LTE network obviously.