Demonstration of Columbia IP telephony test bed

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Demonstration of Columbia IP telephony test bed

• Presented by
• Wenyu Jiang, Kundan Singh and Xiaotao Wu
• Remote participant Yi Qin

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Overview

• Multimedia communication
• Audio, video, text, screen sharing,
• PSTN interworking, IVR,
• Multi-devices
• IP-phone, telephone, X10, Ncast,
• Collaboration
• Voicemail, discussion forum,
• Test and production systems

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Point to point call
sipwenyu_at_cs.columbia.edu
1 212 9397040
IP endpoint
Telephone network
Telephone subscriber
SIP/PSTN gateway
SIP server
sip7141_at_cs.columbia.edu
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Multimedia conferencing
SIP/PSTN Gateway
Department PBX
Telephone 7040
Video encoder
IP phones (cisco, grandstream)
sipconf Conference server
SQL database
Web based configuration
Soft phones (sipc, jsipc, messenger)
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Non real-time collaboration

• Voicemail
• Answering machine on no-answer or busy
• Auto-attendant to access Inbox
• Web interface
• Configuration and profile

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Device control

• MESSAGE siplamp_at_cs.columbia.edu
• DO sipstereo_at_cs.columbia.edu
• SUBSCRIBE sipdoor_at_alice.home.net
• NOTIFY sipalice_at_work.com

X10 device
SIP
lamp
DO sipstereo_at_cs.columbia.edu SIP/2.0 .. ltControl
gt ltActiongttune AM 103Klt/Actiongt lt/Controlgt
MESSAGE siplamp_at_cs.columbia.edu SIP/2.0 .. turn
on
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Summary

• SIP-based architecture
• Heterogeneous endpoints
• Telephone, SIP phone, H.323
• Devices like lamp, video encoder
• Advanced services
• Programmable call routing, voice mail,
  interactive voice response
• Multimedia collaboration
• Synchronous conference, IM
• Offline discussion board, voicemail, file sharing