HfpAudioGatewayFeature

HFP 音訊閘道功能詳情請參閱 HFP v1.9 第 100 頁。

Variant
"attach_phone_number_voice_tag"
"echo_canceling_and_noise_reduction"
"enhanced_call_control"
"enhanced_voice_recognition_status"
"inband_ringtone"
"reject_incoming_call"
"three_way_calling"
"voice_recognition"
"voice_recognition_text"