ðə bˈɛɹɚ kˌeɪpəbˈɪlᵻɾi ɪz ɔːɡmˈɛntᵻd baɪ ðə hˈaɪɚ lˈeɪɚ kəmpˌæɾəbˈɪlᵻɾi ˌeɪtʃˌɛlsˈiː ˌɪnfɚmˈeɪʃən ˈɛlɪmənt ɐnˈʌðɚ fˈiːld ɪnðə kjˈuː.nˈaɪnhˈʌndɹɪd θˈɜːɾi wˈʌn sˈɛɾʌp mˈɛsɪdʒ, wˌɪtʃ ɪnfˈɔːɹmz ðə nˈɛtwɜːk ʌvðə jˈuːs ðætðə kˈɔːlɚɹ ɪntˈɛndz tə mˌeɪk ʌvðə tʃˈænəl.
The Bearer Capability is augmented by the Higher Layer Compatibility (HLC) Information Element (another field in the Q.931 SETUP message), which informs the network of the use that the caller intends to make of the channel.