sipd sip323 sipconf sipum sipvxmlrtspd

CINEMA Libraries

libNT

Win32 stub

libcine

Utilities parsingIPv6

libsip

Basic SIP library

libsip++

SIP UA library

libmixer

RTP audio mixer

libdict

Hash table

libdb++

mySQL intf

RTSP mediaserver

SIP proxy server

SIP/H.323gateway

SIP/RTP conferencing

SIP/RTSP unified messaging

SIP/VoiceXMLbrowser

LDAPXerces-C OpenH323

MySQLPWLibResparse

librtsp

RTSPclient

librtp

RTP library

libsnmp

SIP MIB

ViaVoiceXerces-C

CINEMA Applications

““A flexible architecture to support wide range of multimedia A flexible architecture to support wide range of multimedia communication applications, both clients and servers”communication applications, both clients and servers”

http://www.cs.columbia.edu/IRT/cinema/http://www.cs.columbia.edu/IRT/cinema/

Presented by:

Kundan SinghJoint work with Wenyu Jiang, Jonathan Lennox, Sankaran Narayanan, Henning Schulzrinne and Ali Khwaja

Telephone7040

SIP/PSTN Gateway

Department PBX

Web based configuration

Web server

Telephoneswitch

Device GW

X 10

SQLdatabase

sipd

7134,wenyu

Xiaotaow

NetMeetingsiph323

H.323

rtspd

sipum

Quicktime

RTSP clients

RTSP

sipconf

7135, sank

713x

Single Box(Netra)

Ncast video encoder

SNMP(Network Management)

W. Jiang, J. Lennox, H. Schulzrinne and K. Singh, “Towards Junking the PBX: Deploying IP Telephony". NOSSDAV 2001,ArchitectureArchitecture

• Inter-working between SIP and H.323 version 2.0• H.323 fast-start as well as normal call• Multiple simultaneous independent calls• Transparent media traffic• Unix as well as Windows• Built-in gatekeeper• Different dialing modes

SIPSIP H.323H.323

Gatekeepersipc

K. Singh, H.Schulzrinne, "Interworking Between SIP/SDP and H.323". Proceedings of the 1st IP-Telephony Workshop (IPTel'2000), April 2000.

• SIP based conferencing server• SIP/SDP and RTP/RTCP• Audio mixing• Play-out delay algorithm• Web based conference setup• G.711 A and Mu law, G.721, DVI

ADPCM• Multiple simultaneous conferences

sipcsipcSIP323SIP323

SIP/PSTNSIP/PSTN

K. Singh, G.Nair and H.Schulzrinne, “Centralized Conferencing using SIP". Proceedings of the 2st IP-Telephony Workshop (IPTel'2001), April 2001.

Multimedia ConferencingMultimedia Conferencing

Unified MessagingUnified Messagingvoice mail, answering machine, web based setup, email and web integration . . .

Kundan Singh and Henning Schulzrinne, "Unified Messaging using SIP and RTSP". IP Telecom Services Workshop 2000, Sept 2000. Atlanta, Georgia.

PSTN

SIP user agentSIP user agent

SIP/PSTN gatewaySIP/PSTN gateway

Web serverWeb server

CGI, servlet, JSP

SIP based VoiceXML

browser

SIP phoneSIP phone

            

Media serverMedia server

Call Request

Fetch VoiceXML pages

Get streaming media

Press 1 to listen to next message, 2 to forward …

VoiceXML is an XML based language for specifying voice dialogs for interactive voice response systems.

Performance Performance measurement measurement

and Scalabilityand Scalability• Busy hour call arrival (BHCA)• Requests per second• Request turn-around time• Participants per conference• Simultaneous media streams• DNS based scalability with

server farms• Stateless proxy• Hierarchical conference

servers• Redirect feature

http://www.sipstone.orghttp://www.sipstone.org

Services and Services and applicationsapplications

Multiparty ConferencingMultiparty Conferencing

Unified messaging,Unified messaging,voice mail and voice mail and answering machineanswering machine

SIP/VoiceXML browserSIP/VoiceXML browser(In progress)(In progress)

Real-time Media StreamingReal-time Media StreamingSIP/H.323 translationSIP/H.323 translation

Hardware SIP phonesHardware SIP phones

Instant messagingInstant messagingand presenceand presence(In progress)(In progress)

SIP-PSTN gatewaySIP-PSTN gateway(In progress)(In progress)

Software SIP Software SIP clientsclients

Development Libraries Development Libraries (User agent API, SIP (User agent API, SIP

Stack)Stack)

Programmable Programmable SIP servers SIP servers (CGI, CPL)(CGI, CPL)

… moving from IP telephony to a real-time multimedia collaboration environment…