术语表下载 术 AAL 2(ATM Adaptation Layer type 2) ACCS (automated calling card service) ACELP (Algebraic-Code-Excited Linear-Prediction) ACKs (TCP acknowledgments) ACM (Address Complete Message) Abs (analysis-by-synthesis) ACD (automatic call distributor) A/D (analog-to-digital) ADPCM (Adaptive differential pulse code modulation) ADSL (Asymmetric Digital Subscriber Line) AlN (Intelligent Network) ANM (Answer message) API (Application Programming Interface) ASIC (application-specific integrated circuits) ASN.1 (Abstract Syntax Notation.1) ASP (Access Signal Protocol) AI (artificial intelligence) ATM (Asynchronous Transfer Mode) ATU-R (ADSL transmission unit, remote side) AVP (Attribute-Value-Pair) BA (Behavior Aggregate classifier) BC (Bearer capability) BCR (Business Communication Review) B-ISDN (b……