Introduction; Abbreviations And Glossary - ASCOM VoWiFi System System Description

System Description
Ascom VoWiFi System
1

Introduction

The Ascom Voice over Wireless Fidelity (VoWiFi) system provides wireless IP telephony,
messaging and alarm functions to enterprise LANs. Using third-party WLAN products as well
as in-house developed hardware and software, the system enables data and voice
transmission together with seamless roaming.
This document gives a general description of the Ascom VoWiFi solution. It briefly describes
WLAN and VoWiFi technologies and standards.
Location Server
Figure 1. VoWiFi overview
1.1

Abbreviations and Glossary

AES
AP
BPSK
BSS
CAC
CCKM
CCMP
CCX
Controller
DFS
DTIM
EAP
EAP-FAST
7 September 2011 / Ver. G
Controller
LAN
Presence
Management
System
IP-PBX
required equipment
optional equipment
1. Figure
Advanced Encryption Standard
Access Point:
a radio transceiver providing LAN connection to wireless devices.
Binary Phase-Shift Keying
Basic Service Set
Call Admission Control
Cisco Centralized Key Management
Counter Mode Cipher Block Chaining-Message Authentication Code
(CBC-MAC) protocol
Cisco Compatible Extensions
a Controller delivers Wireless LAN services over an existing Ethernet or
IP infrastructure.
Dynamic Frequency Selection
Delivery Traffic Indication Message
Extensible Authentication Protocol
EAP-Flexible Authentication via Secured Tunnel
Access Point
IMS3 / Unite CM
Unite System
TD 92313EN
VoWiFi Handsets
2