Architecture Proxy, Redirect, Registration server. Authentication Programmable (SIP- CGI) OpenSource SQL database: MySQL User information: Contact location Profile (e.g., password) Aliases Conferences Address book System information Configuration SQL database sipd

Architecture Web based configuration Web server User profile can be modified using web browser. Creating new user (admin/normal) Changing profile and contact information (“follow me” service). Web CGI scripts Both sipd and web scripts use the database SQL database sipd

Architecture Web based configuration Web server IP phones connected to the departmental LAN. Users are identified by id, e.g., Software (sipc) for desktop. Allows audio, video, chat, white board, device control, instant message, presence and desktop sharing. Also plugnsip. SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Web based configuration Web server Phones register themselves with sipd when powered up. Sipd stores the contact information in the database table: => There can be multiple contacts. All registered phones ring, and the first to pick up is connected. SQL database sipd Regsitration can also be altered from the web interface e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Web based configuration Web server (2) Phone rings, the user picks up the call and can talk to the caller. (1) When somebody calls sipd gets the INVITE message and forwards the call to the current location. Another IP phone Based on user profile, sipd may ask for caller authentication. SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Cisco 2600 router with SIP/PSTN gateway connects the departmental LAN with the PBX. Departmental PBX (Nortel Meridian) connects both internal and external lines to the gateway. Telephone switch Internal T1/CAS External T1/CAS (Extension:713x) Dial “8” to reach outside line SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server (1) When PBX receives a call for , it forwards the call to extension is assigned to the gateway. Telephone switch Internal T1/CAS (Extension:713x) Dials SQL database sipd (2) The gateway forwards all PSTN calls to sipd; (3) Sipd looks into the dialplan, finds a mapping and forwards the call to the current location of “wenyu”. e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

SQL database sipdArchitecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server (2) Sipd authenticates the caller and checks permissions. Sipd maps the number to adding the prefix “8” and the gateway address. (3) PBX forwards the call to external line. Telephone switch (1) The IP user dials Dial “8” to reach outside line External T1/CAS (4) PSTN user receives the call. e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Can use no-DID (direct inward dialing) mode for more numbers. Telephone number mappings and privileges modifiable from the web Telephone switch Internal T1/CAS External T1/CAS SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server SNMP agent for SIP MIB. Allows remote monitoring and control of the SIP server. (e.g., prompt when an unauthorized registration is attempted) Telephone switch SNMP (Network Management) SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Allows an H323 client (Netmeeting) to use the services of our SIP infrastructure. SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones NetMeeting siph323 H.323

NetMeeting siph323 H.323 Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Provides a voice mail and answering machine service to all the registered users. Has web interface for accessing voice mails. Generic media server for playback and recording of messages. Can work with existing RTSP client, Apple’s QuickTime. SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones rtspd sipum Quicktime RTSP clients RTSP

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Centralized conferencing server for audio and video. Users can join from IP as well as PSTN. SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf

rtspd sipum Quicktime RTSP clients RTSP NetMeeting siph323 H.323 e*phone sipc Software SIP user agents Hardware Internet (SIP) phones Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Netmeeting user dials SIP user dials PSTN user dials Sipd maps 7139=> SQL database sipd sipconf

NetMeeting siph323 H.323 e*phone sipc Software SIP user agents Hardware Internet (SIP) phones Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Device gateway allows control of X10 devices. We can control a “lamp” using SIP DO message. Device GW X 10 SQL database sipd rtspd sipum Quicktime RTSP clients RTSP sipconf

Architecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Device GW X 10 SQL database sipd e*phone sipc Software SIP user agents Hardware Internet (SIP) phones NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder High Priority Low Priority

Demo Scenario Telephone 7040 SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch Device GW X 10 SQL database sipd 7134,wenyu Xiaotaow NetMeeting siph323 H.323 rtspd sipum Quicktime RTSP clients RTSP sipconf 7136, my x Single Box (Netra) Ncast video encoder

rtspd sipum Quicktime RTSP clients RTSP e*phone sipc Software SIP user agents Hardware Internet (SIP) phones SQL database sipdArchitecture Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) Device GW X 10 SIP based Voice XML browser to allow access to voice mail and other services from touch tone phones Performance measurement and scalability for very large call/session volumes (for sipd, sipconf and rtspd). Accounting and billing services Communication portal: Address book, calendar, message board, file sharing, conferencing, etc. NetMeeting siph323 H.323 sipconf

rtspd sipum Quicktime RTSP clients RTSP NetMeeting siph323 H.323 e*phone sipc Software SIP user agents Hardware Internet (SIP) phones Architecture SIP proxy, redirect server SQL database sipd Telephone SIP/PSTN Gateway Department PBX Web based configuration Web server Telephone switch SNMP (Network Management) SIP conference server sipconf Device GW X 10 Single box

Architecture Telephone External SIP/PSTN Gateway Telephone switch Single box All servers in a single box Connects to a PSTN/SIP gateway Users can use soft clients or hardware phones Web based configuration and management