SIP and VOCAL
VOCAL System
VOCAL System
Traditional Telcos
Voice over IP
Open Source VoIP
Why Does Cisco Support Open Source VoIP?
Session Initiation Protocol
What is SIP?
SIP is Simply...
SIP Requests
SIP Responses
Where It’s @
INVITE
SIP Roles
From 2 Devices...
...to Many Endpoints...
...to a Complete Phone System
VOCAL Vovida Open Communication Application Library
VOCAL: Say, What?
A Simplified Call Flow
System Diagram
Screenshot
Redundancy
VOCAL SIP User Agent: SIPSet
Use Case #1
B2BUA
Use Case #2
Block Diagram
Example 1
Example 2
Example 3
Cool New Features
WIFY?
How Can You Help?
Who’s Working on it?
Vovida.org Stats - SIP
Vovida.org Stats - VOCAL
Vovida.org Stats – Site Visits
Vovida.org
Vovida.org
O’Reilly Book
www.vovida.org