To by-pass the 40 char ID you can use the name registration system offered by Ring and register a username as you like. The option is available at the account creation and in the settings. you can also use a QRcode on android
> We haven't had time to add contact managing features (adding, editing, etc.) to Ring yet as its not the priority in the alpha stage
The contacts are are present as an internal funtion in Ring, only external sources of contacts are not supported yet.
> The Ring OpenDHT network is new and it may take up to a few minutes to discover Ring nodes around and reach your partner's machine.
It is a worst case scenario, usually takes 10 seconds
> Ring can usually reach computers behind a NAT provided that you have checked the Allow UPnP setting
It also works without uPnP but with less quality (using STUN or TURN)