Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
call-in is a noun meaning "a telephone call to a radio station or a television station in which the caller participates in the on-going program". It carries one recorded sense.
a telephone call to a radio station or a television station in which the caller participates in the on-going program
Definitions, synonyms and semantic relations for call-in come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.