IP Telephony
Disclaimer
Paradigm Shift
So …What is IP Telephony?
TCP vs VoIP
That Simple?
PPT Slide
VoIP Building block
Control Protocols
SIP
IAX(2)
Phones
Most IP phones can work Peer to Peer
PBX Software
Asterisk is a ….
Asterisk is not …
System Requirements
Channel types - non-IP
Configuration options
Basic Configuration
Call Flow
Regular expressions (briefly)
Call Flow (cont’d)
Variables
Special Variables
Some Applications
Some Applications (cont’d)
Practical Uses (office)
Advanced Topics
References ….
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