Currently using the telephone; on a telephone connection.

(loanword) a format used in radio or television programs where listeners or viewers call in to talk directly with the host or guests; derived from the English 'call in'

Connected to a computer network or the internet; available or performed through the internet.

(loanword) a format used in radio or television programs where listeners or viewers call in to talk directly with the host or guests; derived from the English 'call in'