The word "Kallesta" is spelled with the following IPA phonetic transcription: /kəˈlɛstə/. The first sound is a schwa sound, which is a short and unstressed "uh" sound. The "k" sound is pronounced as in "kick". The "a" in the second syllable is a short "eh" sound, while the "l" is pronounced with a light "l" sound. The "e" in the third syllable is also pronounced as a short "eh" sound. The "s" and "t" sounds are pronounced as in "sit" and "top", respectively. Finally, the last syllable ends with an "uh" sound, just like the first syllable.