Wikipedia
A teledotcom is a domain name that not only spells a memorable word but also has a matching toll-free telephone number. This means the word that spells something will have a toll-free prefix and a top level domain extension after it. A teledotcom can be accessible by either phone or internet address.
Most owners of a toll-free number that spells something (see Phoneword), will also try to register the matching domain name and therefore create a teledotcom; a valuable asset should they wish to sell it. It is significantly more difficult for an owner of a valuable domain names, because the matching toll-free numbers are much rarer. As a consequence of the difficulties in obtaining the domain name and the matching toll-free telephone number, the number of teledotcoms is quite low.