© 2000, Columbia University© 2000, Columbia University

sipcsipc

SIP based audio conference serverSIP based audio conference server

© 2000, Columbia University© 2000, Columbia University

FeaturesFeatures

• SIP/SDP and RTP/RTCP• Audio mixing• Play-out delay algorithm• Web based setup• G.711 A and Mu law,

G.721, DVI ADPCM• Multiple simultaneous

conferences

sipcsipc

© 2000, Columbia University© 2000, Columbia University

What’s next ...What’s next ...

• More codecs• Auto registration• SIP Authentication• Video multiplexing• PSTN or H.323

sipcsipc

http://www.cs.columbia.edu/~kns10/software/sipconfhttp://www.cs.columbia.edu/~kns10/software/sipconf

SIP323SIP323

SIP/PSTNSIP/PSTN