In contrast to interpersonal communication ('one-to-one' communication), this term is typically used to refer to 'one-to-many' communication, although this dictinction tends to overlook the importance of communication in small groups (neither 'one' nor 'many'). Whilst mass communication may be 'live' or recorded, it is primarily asynchronous - live two-way communication through a mass medium occurs only in such special cases as radio or television 'phone-ins' (which involve interpersonal communication which is then broadcast).