the open source communication platform -...
TRANSCRIPT
Mobicents 2.0The Open Source Communication Platform
DERUELLE Jean
JBoss, by Red Hat
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AGENDA
> VoIP Introduction
> VoIP Basics
> Mobicents 2.0 Overview
– SIP Servlets Server
– JAIN SLEE Server
– Media Server
– SIP Presence Service
– Diameter
VoIP Introduction
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Introduction
> Voice over Internet Protocol ?
– Voice communications over IP networks
– Not limited to voice anymore
> Converged VoIP & Web Applications?
– Converged service was serving VoIP and traditional packet-switched networks.
– Now mixing traditional internet applications such as the web.
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VoIP Applications
> Home Security> Location Based Services> Event Notification by Phone, SMS
and IM> Conferencing> IT System Monitoring> Web Integration for Convergence> Customer Relationship Management
> Banking
The Sky Is The Limit!
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Home Security
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Location Based Services
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Interactive Voice Response
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Conferencing
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Web Integration for convergence
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CRM Integration
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Banking
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The Sky Is The Limit !
VoIP Basics
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VoIP Call
> SIP
– Negotiates RTP parameters (through SDP)
– Authentication
> RTP – carries audio stream in small packets
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SIP Call Flow
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Session Initiation Protocol
> Similar to HTTP
– Plain Text protocol
– Request/Response Based
> Sample request:
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP pc33.jboss.com;branch=z9hG4bKkjshdyff
To: « Anakin » <sip:[email protected]>
From: « Jean » <sip:[email protected]>;tag=88sja8x
Call-ID: 987asjd97y7atg (like a Web Session ID)
CSeq: 986759 INVITE
...
<SDP>
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SIP - Requests
> INVITE – make a call
> CANCEL – cancel a call
> BYE – end a call
> SUBSCRIBE – to subscribe SIP events, such as buddy status update
> REGISTER – submit your contact info to the server
> MESSAGE – send a text (or other) message
> OPTIONS – query capabilities
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SDP – Session Description Protocol
> Describing multimedia session
v=0
o=sender 123456 654321 IN IP4 127.0.0.1
s=A conversation
c=IN IP4 127.0.0.1
t=0 0
m=audio 7078 RTP/AVP 111 110 0 8 3 101
a=rtpmap:0 PCMU/8000/1
a=rtpmap:8 PCMA/8000/1
a=rtpmap:3 GSM/8000/1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11
Mobicents Overview
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Mobicents 2.0 Overview
> JBoss is the only vendor supporting both JSLEE and SIP Servlets
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Mobicents Deployment Scenario
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Market Segments
> Big mobile and landline telecoms adopting IP/IMS infrastructure (performance, HA, service exposure)
> Call centers (HA, UI convenience, BPM)
> Classic web applications (easy development)
– Web shopping and customer service
– Social, banking, security, etc
> Enterprises (integration, customization)
– PBX and unified communications
– Office application integration
Mobicents SIP Servlets
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SIP Servlets in Java EE Architecture
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Focus of SIP Servlets
> Converged HTTP and SIP Applications
> (Mobicents-specific beyond JSR-289)
– Media – playback, record, conferencing, IVR, TTS and others, JSR 309 support (JSR 309)
– Diameter – Base, Sh, Ro, Rf
– Tooling - JBCP Developer Studio SIP Servlets Plugin
– Integrated with Rich Web UI frameworks for Desktop-like experience – support for Ajax and Comet-enabled frameworks – Seam, Richfaces, GWT, Tomcat AIO, Jruby/Rails
– Telco Frameworks - - Seam Telco Framework, Seam Telco Framework, Jruby Torquebox Telco Framework, Echarts For Sip Servlets Framework, JAIN SLEE Interoperability Patterns
> Need anything else? It's on a case-by-case basis, but JAIN SLEE is the general solution.
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Production Features
> IMS & Diameter support
> Congestion Control
> Concurrency Control
> Enterprise Monitoring with JBoss ON (Sip Servlets Plugin)
> HA Support
– SIP Load Balancer bundled with JBCP SIP Servlets
– IP Load Balancer support with Red Hat Cluster Suite or any other IP LB
– SIP Session & Application Session Clustering nicely integrated with existing HTTP clustering
– Fine-grained control replication options
– Support for Mid Call Failover with bundled SIP LB or early dialog with IP LB
– Support for Converged Failover with apache http + Mod_jk
Mobicents JAIN SLEE
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JAIN SLEE - Concepts
> Geared towards Telco
> SLEE = Service Logic Execution Environment
– High throughput, low latency event processing
– High performing platform for event driven applications
> Asynchronous & Event Orientated
> Network Abstraction Layer
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JAIN SLEE Example
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Mobicents JAIN SLEE Server
> Integrated Java EE + JAIN SLEE environment
> Network abstraction layer - SIP, XMPP, Diameter, Media/MGCP, HTTP, SMPP
> Tooling - JBCP Developer Studio JAI N SLEE Plugin
> Enterprise Monitoring with JBoss ON (JAIN SLEE Plugin)
> High Performance and High Availibility
Mobicents Media Server
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Mobicents Media Server
Phone#1 RTP
Phone#2
RTP
SIP
SIP
MGCP Mobicents Media Server
SIP Servlets / JAIN SLEE Container
> Handles Media processing to Deliver competitive, complete, best-of-breed, high quality media gateway
> Provides a Component model, very flexible
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Architecture> Ann(ouncement) Endpoint: Allows playback for announcements in wav files.
> Interactive Voice Response: Allows playback for announcements and tones, listen for DTMF events or voice messages. Allows recording.
> Conference Bridge: provide access to a specific conference where calls are mixed.
> Packet Relay: specific form of conference bridge with only two sockets
> SS7 endpoints for interface with legacy networks
> Custom Endpoint : Flexibility to define your own media path
> Pure Java Implementation
> Control the Media Server – MGCP, JSR-309 API (uses MGCP under the covers)
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Features
> Media control
– MGCP (RFC 3435), Java Media Control API(JSR-309)
> Supported Media Files
– Media files *.wav (G711, GSM, PCM), *.spx(SPEEX), *.gsm
> Media bearing/Audi Codecs
– RTP formats: G711, G729, GSM, SPEEX, PCM 16bit 8-44kHz (Mono/Stereo)
> Video
– any ISO Based format (.3GPP, ...), H263
> SS7 support - ISUP : Signaling and Voice, INAP, MAP, CAMEL
> Text To Speech
> DTMF Recognition
> Performance
– 200 Full Duplex connections: CPU usage less than 15% and maximum jitter less than 6ms
Mobicents SIP Presence
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SIP Presence Service
> Provides presence functionalities to SIP-based networks using standards developed by the IETF, OMA, 3GPP and the ETSI
PUBLISH
SUBSCRIBE / NOTIFY
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Implementation
Mobicents Diameter
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Mobicents Diameter Architecture
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Features> Core
– Stack : Own fork of JDiameter open source stack
– Multiplexer + Customizable Validator (message validation) + Customizable Dictionnary (provide dictionnary of AVP to applications)
> Interfaces
– Base : responsible for managing connection between peers and provide basic Authentication, Accounting and Session Management
– Sh (Client/Server) : managing User Data in HSS
– CCA: enable credit session management, and convey sufficient information for applications to perform charging activities.
– Ro/Rf : Online/Offline charging
– Cx/Dx : interaction between SIP IMS Proxies and HSS
> Example applications (both for JSLEE and J2EE)
– Base and Mobicents SIP Servlets Event Call Charging
– Sh (Client/Server) and OpenIMS Integration
– Ro/Rf example
> Enterprise Monitoring with JBoss ON (Diameter Plugin)
Demo
