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.
Many Sprint and Verizon phones now have SIM cards, but that isn't because of CDMA. The SIM cards are generally there for Sprint's and Verizon's 4G LTE networks, because the LTE standard also uses SIM cards. But those carriers still use CDMA to authenticate their phones on their own home networks.