SAPI

SAPI definition - telecom
In ISDN, a one-octet address field that identifies the destination service access point.The SAPI and terminal endpoint identifier (TEI) jointly compose the data link connection identifier (DLCI), which is the two-octet address field in an LAPD frame. See also DLCI, ISDN, and LAPD.

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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