Also known as PTToC radio
push to talk over cellular radio
手機對講服務（PoC：Push-to-Talk over Cellular）或稱隨按即說、即按即說服務是指是一種透過GPRS/WCDMA/CDMA等流動網絡讓手機能使用Push-to-talk方式的通訊服務。
Abstract from DBpedia / Wikipedia · CC BY-SA
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).