McDewey

© 2020 Cisco Systems, Inc. All rights reserved. Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.com Page 48 of 50 Acronyms Acronym Definitions CPE Customer Premise Equipment Cisco UBE Cisco Unified Border Element Cisco UCM Cisco Unified Communications Manager MTP Media Termination Point POP Point of Presence PSTN Public Switched Telephone Network ESBC Enterprise Session Border Controller SCCP Skinny Client Control Protocol SIP Session Initiation Protocol