If you register a few .tel variations can you redirect to one main one? Also I take it by how they seem to work that no hosting is involved with these domains?
I was talking to Telnic about this last night.
At the moment the simplest thing to do is to create a link on the secondary .tel domain to the main one.. They haven't enabled pointing / aliasing in the system as yet, though they might do if there was enough demand
Re: hosting - Telnic community hosting works fine. The other alternative is to use a Telnic certified partner, but I haven't come across any of them as yet