Transcript No Slide Title

Internet Real-Time
Laboratory demonstration
Prof. Henning Schulzrinne
[email protected]
http://www.cs.columbia.edu/IRT
Multimedia collaboration
Telephone
Dial 212-9397139
IP phone
sipconf
…enter 3 digit PIN…
…enter conference id…
IP “soft” phone
Dial [email protected]
Messaging and device control
Internet
DO sip:[email protected] SIP/2.0
…..
<Control>
<Action>turn lamp on</Action>
</Control>
Programmable Call Routing
Others’ call
Voicemail
upload
William’s call
PUBLISH
Call decision Tree
(CPL scripts)
Service Creation
<?xml version="1.0"?>
<cpl>
<incoming>
<time-switch>
<time dtstart="20031117T160000Z"
duration="PT1H">
<address-switch field="origin">
<address is="sip:[email protected]">
<alert ringstyle=“urgent">
<accept>
<string-switch field="subject">
<string is="lunch">
<location url="sip:[email protected]">
<call/>
</location>
</string>
</string-switch>
</accept>
</alert>
……
Example projects
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Location-based services: i-button, badge
Voice and video mail
Email access and notification by phone
Emergency 911 call routing
File sharing among conference participants
Integrating IP telephony with virtual games
UDP-based link simulator
Wireless ad-hoc networks
...