G400E
User Manual
OpenVox Communication Co. LTD.
URL: www.openvox.cn
6
Chapter 1 Overview
1.1 What is Asterisk
The Definition of Asterisk is described as follows:
Asterisk is a complete PBX in software. It runs on Linux, BSD, Windows
(emulated) and provides all of the features you would expect from a PBX
and more. Asterisk does voice over IP in four protocols, and can
interoperate with almost all standards-based telephony equipment using
relatively inexpensive hardware. Asterisk provides Voicemail services
with Directory, Call Conferencing, Interactive Voice Response, Call
Queuing. It supports three-way calling, caller ID services, ADSI, IAX,
SIP, H323 (as both client and gateway), MGCP (call manager only) and
SCCP/Skinny (voip-info.org).
PC+Softphone
SIP phone
Analog phone
Switch
Asterisk
VOIP PBX
Operating System Linux and FreeBSD
OpenSource Drivers Asterisk
®
,DAHDI,
Zaptel,Bristuff,Misdn and ISDN4BSD
Protocol SIP, IAX, SS7, MGCP, H323, R2 and more..
Applications IVR, CRM, FAX, E-mail, CallCenter, Billing
and your application..
Figure 1 Topology
