Examine mobile device network connectivity options, such as wireless, cellular, and Bluetooth, as well as application support for commercial e-mail and VPN. Find out how wireless and cellular data networks operate. Watch how to enable, pair, find, and test Bluetooth connectivity. Study POP3 and IMAP email configurations. Review S/MIME settings. Explore the differences between iCloud, Google, Exchange Online, and Yahoo. Consider features of PRI (Product Release Information), PRL (Preferred Roaming List), and baseband device updates. Identify the purpose of radio firmware. Compare IMEI and IMSI identification systems. Discover the benefits of VPN