I agree most free VPN services are not recommended to Raspberry Pi Vpn 3g use on the Windows operating Raspberry Pi Vpn 3g system because of the lack of security some of them are bloated with ads or malware. Me, personally I use VyprVPN it has very strong features like AES 256-bit encryption, automatic kill switch and a NAT Firewall to block malware.

Jun 26, 2009 Is the AT&T iPhone 4S a 4G phone or not? - CNET That said, AT&T's claim that the iPhone 4S uses technology that is three times faster than its traditional 3G network, is true. After an upgrade to iOS 5.1, the iPhone 4S on AT&T now sports a 4G iPhone 3G 3.0 and Cisco 5520 ASA SSL VPN Solutions I myself am using my iPhone 3G to VPN to an ASA, however that is not using SSL vpn, but IPSec VPN. I am unaware of an SSL VPN option. IPSec VPN works like a charm, tho. This is probably not the answer you're looking for, but might put you on track for a work around if need be. Good luck, anyway. JG

View and edit your Access Point Name (APN) on your iPhone

Jun 13, 2020 Cisco VPN issues on Iphone 3G | MacRumors Forums

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Sep 30, 2012 Apple iPhone XR - Sprint Essentials: Includes unlimited domestic calling, texting, and data, & unlimited (at 3G speeds) MHS, VPN & P2P. Third-party content/downloads are add’l. charge. Plan not avail. for tablets or MBB devices. How to Unlock an Apple iPhone 2G or 3G « Smartphones