3CX PBX and Phone System for Windows
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VoIP Protocols
Introduction
SIP (Session Initiation Protocol)
H.323
IAX (InterAsterisk eXchange Pr.)
SIP vs H.323
Telephones
Softphones
Hardphones
3CXphone
Sjphone
Sjphone tricks
QoS (Quality of Service)
Introduction
Jitter
Latency
Echo
Packet loss
Bandwidth
Test
Codecs
Summary table
G.711 codec process
New codecs
Audio Samples
Asterisk
Introduction
Linux installation
Windows installation
First Steps
sip.conf
extensions.conf
voicemail.conf
3CX PBX
Introduction
Support
Phone configuration guides
Gateway configuration guides
SER (Sip Express Router)
Introduction
SER vs Asterisk
Linux Installation
FreeBSD Installation
MySQL support
Errors and Solutions
More information
Glossary
Future
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