developing sip applications
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© Voxeo Corporation
Sep 16th, 2008
TMC Communication Developer Conference
RJ AuburnCTOrj@voxeo.com
Developing SIP Applications
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Telephony
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Sucks
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Complex
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Arcane
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Proprietary
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This is not how it should be...
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Simple
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Ubiquitous
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Open
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What to do?
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Leverage The Web Model
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Utilize Standards
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SOAP/REST
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What Does It Look Like?
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Application
Platform
API XML Tools
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Application
Prophecy
JSR289, REST, SOAP
CCXML&
VoiceXMLDesigner
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ApplicationApplication
Platform
API XML Tools
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Building Blocks
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Session Initiation Protocol
- Session Initiation Protocol (SIP)defines how to establish a communication session betweentwo endpoints
- Primarily used for voice, but can for IM or virtually any other protocol
- Almost always used in client/server configuration with "SIP proxies" in control of "SIP endpoints"- Work going on in P2PSIP - see www.p2psip.org
- Text-based protocol, originally modeled on HTTP
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SIP Communication
Alice Bob
RTP (voice)
INVITE
180 RINGING200 OK
ACK
BYE200 OK
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Alice Bob
ProxyA
ProxyBSIP
SIP
RTP
SIP
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SIP Resources
- Internet Engineering Task Force (IETF)- RFC 3261- Hitchhiker’s Guide to SIP
- Open Source Info- VoIP Info Wiki: www.voip-info.org
- Industry Sites- SIP Forum: www.sipforum.org- SIP Foundry: www.sipfoundry.org- OpenSBC: www.opensourcesip.org
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Open Source SIP Software
- Systems- Asterisk: www.asterisk.org- sipXecs: www.sipfoundry.org- FreeSWITCH: www.freeswitch.org- OpenSER: www.openser.org
- SIP Stacks- reSIProcate: www.resiprocate.org
- Phones:- Gizmo: www.gizmoproject.org
- MANY, many more: www.voip-info.org
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Religion
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XML
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CCXML
- Call Control XML (CCXML) is the W3C standard for call control using XML
- Sister standard to VoiceXML- Integrates with VoiceXML for dialog control- Provides a framework for issuing call control commands and handling call control events
- http://www.w3.org/TR/ccxml/
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CCXML Hello World<?xml version="1.0" encoding="UTF-8"?><ccxml version="1.0"> <eventprocessor>
<transition event="connection.alerting"> <log expr="'***** CONNECTION ALERTING *****'"/> <if cond="event$.connection.remote == '8315551234'"> <reject/> <else/> <accept/> </if> </transition>
<transition event="connection.connected"> <log expr="'***** CALL WAS ANSWERED *****'"/> </transition>
<transition event=”connection.disconnected”> <log expr=”‘*** Call was disconnected ***’”/> <exit/> </transition>
<transition event="error.*"> <log expr="'an error has occured (' + event$.reason + ')'"/> <exit/> </transition> </eventprocessor></ccxml>
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Java?
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SIP Servlets
- Standard Java based API for writing SIP applications.
- 1.0 standardized as JSR-116. - 2.0 just released as JSR-289- Extends the HTTP Servlet model to support SIP and telephony applications
- http://www.sipservlet.com/- Supported by a large number of application servers including Oracle (BEA), IBM, Sun, Voxeo.
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Converged Applications
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JSR-309
- Java Media Server API- Based on the CCXML media model - Still in draft stage- Provides dialog resources, conferencing, media routing to Java applications
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Example Application
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Sample Application Overview
- Caller dials in to the application
- Caller is bridged to the subscriber
- Results of the call attempt are posted to Twitter via their REST API
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml version="1.0" xmlns="http://www.w3.org/2002/09/ccxml"></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<var name="state" expr="'init'"/><var name="incomingcall"/><var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/>
<eventprocessor statevariable="state"></eventprocessor>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<transition event="connection.alerting" state="init"> <accept/></transition>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/></transition>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/></transition>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/></transition>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/></transition>
© Voxeo Corporation
<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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© Voxeo Corporation
<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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<transition event="send.successful" state="done"> <exit/></transition>
© Voxeo Corporation
<?xml version="1.0" encoding="UTF-8"?><ccxml xmlns="http://www.w3.org/2002/09/ccxml" version="1.0"> <var name="state" expr="'init'"/> <var name="incomingcall"/> <var name="tURL" expr="'http://zscgeek:password@twitter.com/statuses/update.xml'"/> <eventprocessor statevariable="state"> <transition event="connection.alerting" state="init"> <accept/> </transition> <transition event="connection.connected" state="init"> <assign name="state" expr="'calling'"/> <assign name="incomingcall" expr="event$.connectionid"/> <createcall dest="'tel:+18312392883'"/> </transition> <transition event="connection.connected" state="calling"> <assign name="state" expr="'connected'"/> <join id1="event$.connectionid" id2="incomingcall"/> <var name="status" expr="'RJ is on the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.failed" state="calling"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is not answering his phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="connection.disconnected" state="connected"> <assign name="state" expr="'done'"/> <var name="status" expr="'RJ is off the phone'"/> <send targettype="'basichttp'" name="'update'" target="tURL" namelist="status"/> </transition> <transition event="send.successful" state="done"> <exit/> </transition> </eventprocessor></ccxml>
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© Voxeo Corporation
We Got Java Bean!
© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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public class FMServlet extends SipServlet { public void init() throws ServletException { }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { }}
© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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Api twitter_api;List<URI> targets;
public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com"));}
© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); }}
© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch(TwitterException e){log("failed to update twitter",e);} }}
© Voxeo Corporation
package com.voxeo.rj.fmdemo;
import java.io.IOException;import java.util.ArrayList;import java.util.List;import javax.servlet.ServletException;import javax.servlet.sip.*;import net.unto.twitter.Api;import net.unto.twitter.TwitterException;
public class FMServlet extends SipServlet { Api twitter_api; List<URI> targets; public void init() throws ServletException { twitter_api = new Api("zscgeek", "password"); SipFactory sipFactory = (SipFactory)getServletContext().getAttribute(SIP_FACTORY); targets = new ArrayList<URI>(); targets.add(sipFactory.createURI("sip:rj@voxeo.com")); targets.add(sipFactory.createURI("sip:rj@rjauburn.com")); targets.add(sipFactory.createURI("sip:8312392883@provider.com")); }
protected void doInvite(SipServletRequest req) throws ServletException, IOException { if (req.isInitial()) { Proxy proxy = req.getProxy(); proxy.setRecordRoute(true); proxy.setParallel(true); proxy.proxyTo(targets); } }
protected void doSuccessResponse(SipServletResponse resp) throws IOException { if (resp.getMethod().equalsIgnoreCase("invite")) { try { twitter_api.updateStatus("RJ is taking a phone call from " + resp.getRequest().getRequestURI()); } catch (TwitterException e) {log("failed to update twitter",e);} } }}
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© Voxeo Corporation
So why is this important?
© Voxeo Corporation
Web Developers
Phone Developers Web Developers
© Voxeo Corporation
Web
© Voxeo Corporation
Ideas We have Never Thought Of
© Voxeo Corporation
Standards Matter
© Voxeo Corporation
Example Usage
© Voxeo Corporation
Project Green Phone
- By Mark Headd- http://www.voiceingov.org/blog/?p=135- VoiceXML, JavaScript, CCXML, PHP- Application:
- Caller dials in to app- App uses ANI/Caller ID and makes web service query to a database to determine location
- Makes another web service query to find location of nearest E85/Biodiesel stations
- Relays information to caller- Sends caller a SMS text msg with info
© Voxeo Corporation
Rocketsource.org
- www.rocketsource.org
- Vox-Attendant- A VoiceXML-based, speech-driven auto attendant that can connect callers
with any person or group with an enterprise, via their desk, cellular, or VoIP phones.
- Vox-Mail- A VoiceXML-based, speech-driven voicemail application that can store
messages locally or integrate with any IMAP email server to provide basic unified messaging.
- Voice Conference Manager- A VoiceXML and CCXML-based, speech-driven conference manager that
features both phone and web-based conference call creation, access, and management.
- VoiceXML, CCXML, grXML, JavaScript, Java, and Python
© Voxeo Corporation
Wrapping Up
© Voxeo Corporation
Look at the big picture
http://flickr.com/photos/txd/100437832
© Voxeo Corporation
More then one way to skin a cat!
© Voxeo Corporation
Avoid the Mouse Trap
© Voxeo Corporation
Be ready to scale
© Voxeo Corporation
© Voxeo Corporation
RJ Auburnrj@voxeo.com
http://www.voxeo.com/prophecyhttp://evolution.voxeo.com
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