> Bestie has a Tin Can? Free calling to other Tin Cans is included for every device, no subscription required.
> Subject to a valid account & our terms of service.
Yeah, subscription aside (though that alone is a deal-breaker for me) I don't like it requiring an account.
Might there be a way that an open-software/hardware device could simply have a person enter, what, a friend's IP address to make a call? Or is there more middleware required to connect the two VoIP?
> Or is there more middleware required to connect the two VoIP?
You need an address of record to translate 111222333 to an actual deliverable location, like a PBX. You can do without it in a software solution, but in the age of NAT having a TURN server is highly advised.
> I don't like it requiring an account.
Remember the value proposition here is for kids calling trusted contacts. You could absolutely and easily build your own VoIP network with Asterisk etc.
> Subject to a valid account & our terms of service.
Yeah, subscription aside (though that alone is a deal-breaker for me) I don't like it requiring an account.
Might there be a way that an open-software/hardware device could simply have a person enter, what, a friend's IP address to make a call? Or is there more middleware required to connect the two VoIP?