Astricon 2012 presentation on Redundancy and High Availability using OpenSIPS/Kamailio by Ali Pey

1. Redundancy and high availability
Ali Pey
Sr. Software Eng Architect
Wed Oct 24, 2012

2. Cloud Services for Business
• eFax®
• eVoice®
• FuseMail®
• Campaigner®
• KeepItSafe®
• Onebox®
• www.j2.com
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3. Outline
• Asterisk Deployments
• Proxy Servers and Redundancy
• Registration, Routing, Manipulation and Nat
traversal
• Questions?
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4. Asterisk Deployment – SIP Phones
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5. SIP Trunks
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6. Analog/Digital Cards/Gateways
Single point of failure
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7. Two asterisk servers and one proxy server
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8. Two Asterisk – Two proxy servers
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9. Final Diagram
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10. Proxy Servers (SBCs)
• Open Source vs. Commercial
• OpenSIPS vs. Kamailio
• OverSIP (Ruby, WebSocket)
• Performance
– Proxy Server
– Asterisk Server
• Reliability
• Media Proxy
• Management Interface
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11. Proxy Servers
• Registrar Server
• Call Routing (Rules, Priorities, LCR & Reporting)
• NAT Traversal
• Security
• SIP Signaling, Codec and Digit Manipulation
• Load Balancing
• Failure detection and re-routing
• Scripting
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12. Installation and configuration
• Linux
• Open Source
• Configuration and Routing script
• Modules
• Database
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13. Modules (over 100 modules)
• SIP Clients related modules:
– Registrar Server
– Authentication
– Presence Server
– Instant messaging, Jabber, Json, SMS
– NAT Traversal
– Back to Back User Agent (topology hiding)
– Database (mysql, oracle, odbc, postgres)
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14. Modules
• Trunks and Routing
– Dynamic Routing (Prefix base rules, priority, time,
distribution, drain mode, failure detection and re-
routing)
– Load Balancer
– Dial Plan
– SIP MSG OPS
– NAT Traversal
– TLS
– XMPP (SIP to XMPP Gateway)
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15. Modules
• Utilities
– Rate Limit
– Statistics
– SNMP interface
– SIP Trace
– SIP Capture
– Pike – Flood detector
– Perl
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16. Title
• Bullets
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17. Questions?
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