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FreeSWITCH clustering with OpenSIPS
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2020-04-22
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Opensis与FreeSwitch集成的框架说明,英文版本。适合部署参考。OpenSIPS Summit 2018 - Giovanni Maruzzelli - FreeSWITCH clustering with OpenSIPS (done well)
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gmaruzz@OpenTelecom.ITOpenSIPS Summit – Amsterdam 2018
Who is Who
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Phones are SIP User Agents that can initiate (client) or accept (server) sessions
–
eg: a phone calls a number, or answers an incoming ring
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OpenSIPS is a SIP Proxy and Registar
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eg: it routes the signaling from User Agents
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eg: it knows ehre the phones actually are
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eg: never touches the media
●
FreeSWITCH is a SIP B2B User Agent, client and server at same time
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eg: it connects two sessions, one as server, one as client
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eg: it answers a call incoming from a "client" phone, then initiate a call toward a "server" phone, then joins
(eg bridges) the two calls
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eg: it mixes the media from the two sessions, the two phones talk to each other and interact with FS at the
same time
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eg: it knows if media is flowing or not (missed BYE anyone?)
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eg: it can mix media with itself (phone talk with IVR)
gmaruzz@OpenTelecom.ITOpenSIPS Summit – Amsterdam 2018
What is to be Done
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Security / High Availability
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Registrations
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Presence / BLF / SLA / IM
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Calls, Internal, FS Local Profile
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Calls, Inbound/Outbound, FS External Profile
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Special Cases (conferences, queues, transfer)
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NAT
gmaruzz@OpenTelecom.ITOpenSIPS Summit – Amsterdam 2018
Security
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"SBC" (whatever it means)
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Single Point of Contact with the Wild Internet
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Easier to Secure / Manage
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Port Forwarding
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iptables / firewall
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pike / antifraud / check well formed
gmaruzz@OpenTelecom.ITOpenSIPS Summit – Amsterdam 2018
High Availability
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Double your OpenSIPS (and RTPProxy)
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Virtual IP Address
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Active - Passive
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Keepalived
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check sip works
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master / backup / fail
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( FreeSWITCH will get its HA from Load Balancing )
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