navyman

Dbarovian, thanks for sharing this link with us. The article states that the travel Ojo actually is GOOD for poor connections in hotels and hotspots. I think that's because it's SIP-based and has STUN capabilities. It's the STUN function that uniquely enables the Ojo to figure out how to traverse most NAT firewalls.

Here's a blurb about what STUN means:

"STUN is the most deployed option and will traverse most NAT firewalls. STUN works by using a lightweight UDP protocol and an external STUN server to identify the type of translation performed by NAT firewall(s). It will then identify specifically the exact translation the NAT has chosen to do on a particular UDP connection used for RTP or SIP. This information is gathered without the specific co-operation of the NAT firewall and is then used to establish the SIP and RTP sessions. While virtually all consumer premises equipment uses a flavor of cone NAT, in a corporate environment it is more likely to encounter symmetric NAT. In this case, an ALG or local proxy is unfortunately needed."