Glossar

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ADSL Amtsleitung Analog Telephone Adapter (ATA) Anrufbeantworter Anrufmanagement Anrufrouting / Call Routing API (Application Programming Interface)

Backbone-Netz Bandbreite Breitbandzugang Business-Telefon

Call History (Anrufhistorie) Call Waiting (Anklopfen) Callback Callcenter Monitoring CCBS (Completion of Calls to Busy Subscriber) CCNR (Completion of Calls on No Reply) CEE (Customer Edge Equipment) Click-to-call / Click-to-mail Client CLIP no screening Cloud-Computing Cloud-Telefonanlage Colocation-Housing Conference Call / Telefonkonferenz CTI

Datacenter-Hosting Datenpaket Datenverschlüsselung DDoS-Angriff (Distributed Denial of Service) DE-CIX DECT Device as a Service (DaaS) Digitaler Arbeitsplatz Digitales Arbeiten Direct Routing DNIS (Dialed Number Identification Service) DNS (Domain Name System) DSL Durchwahl / Direktwahl

Einzelverbindungsnachweis (EVN) Elektronisches Fax (E-Fax) Endgerät Enterprise 2.0 eSIM Ethernet

Fallback Fastpath Festnetz Firewall Firmware FTTH, FTTB, FTTC

Gateway Glasfaser

Hardware as a Service (HaaS) Hot Desking HSRP / VRRP Hybrid Work Hybrid-Telefonanlage

Inbound-Telefonie Infrastructure as a Service (IaaS) Intranet IP-Adresse IP-Telefon IPsec ISDN IVR (Interactive Voice Response)

LAN (Local Area Network) Latenz Load Balancer LTE (Long Term Evolution)

Mehrwertdienste Migration Mobilfunknetz Modem Modern Workplace MPLS (Multiprotocol Label Switching) MPLS-VPN MSN (Multiple Subscriber Number) Multiplex-Anschluss

Nebenstelle Network Operations Center (NOC) NTBA

Outbound-Telefonie

PBX (Telefonanlage) Ping Platform as a Service (PaaS) Port Power over Ethernet (PoE) Premium SLA Presence Sync Proxy PSTN (Public Switched Telephone Network)

QoS (Quality of Service)

Rechenzentrum Registrar Remote Work Roaming Router Routing RTP (Real-Time Transport Protocol) Rückrufnummer Rufnummernblock Rufnummernportierung

SD-WAN SDN Seat Session Border Controller (SBC) SIM-Karte Single Cell DECT SIP (Session Initiation Protocol) SIP-Account SIP-Adresse SIP-TLS SIP-Trunk Softphone Software as a Service (SaaS) Splitter Sprachkanal Sprachqualität SRTP (Secure Real-Time Transport Protocol) SSL (Secure Sockets Layer) Standleitung

T.38 TAE-Dose TAPI (Telephony Application Programming Interface) TCP (Transmission Control Protocol) Teams Connector Telefonanschluss Telefonnetz Telekommunikations-Netz-Betreiber (TNB) TK-Anlage

Unified Communications as a Service (UCaaS) Unterbrechungsfreie Stromversorgung (USV)

VDSL Virtual Network Operator (VNO) Voicemail VoIP (Voice over IP) VPN (Virtual Private Network)

WLAN (Wireless Local Area Network) WPA (Wi-Fi Protected Access) WPS (Wi-Fi Protected Setup)