sip
DESCRIPTION
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Session Initiation Protocol(SIP)
SARATH PR
Agenda
Why do we need SIP The protocol Sip components amp services Internet Telephony with SIP Conclusion
Introduction
SIP is the core protocol for initiating managing and terminating sessions in the Internet
These sessions may be text voice video or a combination of these
SIP sessions involve one or more participants and can use unicast or multicast communication
SIP entities
User Agent
User Agent Client
User Agent Server
Proxy Server Redirect server Registrar
SIP is modeled on HTTP ndash Use same syntax and semantics as HTTP
Request ndash Method (INVITE ACK BYE etc) ndash Header (Accept Contact etc)
Answer ndash Status code (200 OK 180 Ringing etc) ndash Header (Content-type Content-encoding etc)
SIP message types
SIP Message Types
Requests ndash sent from client to server INVITE ACK BYE CANCEL OPTIONS REGISTER INFO
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Agenda
Why do we need SIP The protocol Sip components amp services Internet Telephony with SIP Conclusion
Introduction
SIP is the core protocol for initiating managing and terminating sessions in the Internet
These sessions may be text voice video or a combination of these
SIP sessions involve one or more participants and can use unicast or multicast communication
SIP entities
User Agent
User Agent Client
User Agent Server
Proxy Server Redirect server Registrar
SIP is modeled on HTTP ndash Use same syntax and semantics as HTTP
Request ndash Method (INVITE ACK BYE etc) ndash Header (Accept Contact etc)
Answer ndash Status code (200 OK 180 Ringing etc) ndash Header (Content-type Content-encoding etc)
SIP message types
SIP Message Types
Requests ndash sent from client to server INVITE ACK BYE CANCEL OPTIONS REGISTER INFO
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Introduction
SIP is the core protocol for initiating managing and terminating sessions in the Internet
These sessions may be text voice video or a combination of these
SIP sessions involve one or more participants and can use unicast or multicast communication
SIP entities
User Agent
User Agent Client
User Agent Server
Proxy Server Redirect server Registrar
SIP is modeled on HTTP ndash Use same syntax and semantics as HTTP
Request ndash Method (INVITE ACK BYE etc) ndash Header (Accept Contact etc)
Answer ndash Status code (200 OK 180 Ringing etc) ndash Header (Content-type Content-encoding etc)
SIP message types
SIP Message Types
Requests ndash sent from client to server INVITE ACK BYE CANCEL OPTIONS REGISTER INFO
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP entities
User Agent
User Agent Client
User Agent Server
Proxy Server Redirect server Registrar
SIP is modeled on HTTP ndash Use same syntax and semantics as HTTP
Request ndash Method (INVITE ACK BYE etc) ndash Header (Accept Contact etc)
Answer ndash Status code (200 OK 180 Ringing etc) ndash Header (Content-type Content-encoding etc)
SIP message types
SIP Message Types
Requests ndash sent from client to server INVITE ACK BYE CANCEL OPTIONS REGISTER INFO
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP is modeled on HTTP ndash Use same syntax and semantics as HTTP
Request ndash Method (INVITE ACK BYE etc) ndash Header (Accept Contact etc)
Answer ndash Status code (200 OK 180 Ringing etc) ndash Header (Content-type Content-encoding etc)
SIP message types
SIP Message Types
Requests ndash sent from client to server INVITE ACK BYE CANCEL OPTIONS REGISTER INFO
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP Message Types
Requests ndash sent from client to server INVITE ACK BYE CANCEL OPTIONS REGISTER INFO
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP methods
INVITE initiate call ACK confirm final response BYE terminate (and transfer) call CANCEL cancel searches and ldquoringingrdquo OPTIONS features support by other side REGISTER register with location service INFO mid-call information (ISUP)
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP Message Types (Contd)
Responses ndash sent from server to the client Success Redirection Forwarding Request failure Server failure Global failure
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Sip message types
SIP Methods SIP Answers
INVITE Initiate a call by inviting a user to take part in a session
ACK Confirm that the client received a final response to a request INVITES
BYE Indicate the end of the call
CANCEL Cancel a request
REGISTER To register the User Agent
OPTIONS Used to know the capacities of the server
1xx - Informational Messages
2xx - Successful Responses
3xx - Redirection Responses
4xx - Request Failure Responses
5xx - Server Failure Responses
6xx - Global Failure Responses
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Message parts
Start line Headers Body content
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP End-devices
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP components and services
SIP Servers and services
Proxy SIP Server
Registrar Redirect LocationDatabase
Register I am here
Redirect Here is the address
Locate Where this name is
or tel numberhellip
INVITE I want to speak
with another agent
Proxy INVITES I will call it
for you
SIP User Agents
GW SIP
SIP User Agents
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP Addresses
SIP gives you a globally reachable address 1048672 Callees bind to this address using SIP REGISTER method 1048672 Callers use this address to establish real-time communication with callees 1048672 URLs used as address data format examples 1048672sipjiriiptelorg 1048672sipvoicemailiptelorgsubject=callme 1048672sipsaleshotelxy geoposition=4854_-12384_120 1048672 must include host may include user name port number parameters (eg transport) etc 1048672 may be embedded in Webpages email signatures printed on your business card etc 1048672 address space unlimited 1048672 non-SIP URLs can be used as well (mailto http )
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP Session Establishment and Call Termination
From the RADVISION whitepaper on SIP
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
SIP Call Redirection
From the RADVISION whitepaper on SIP
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Call Proxying
From the RADVISION whitepaper on SIP
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
References
Computer Telephony ndash June 2000 httpwwwradvisioncom wwwcscolumbiaeduhgs wwwnetworkcomputingcom wwwwikipediacom
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Sip is working behind session in internet It makes voip easier In future we can expect more in sip
CONCLUSION
Questions
Thank you
Questions
Thank you
Thank you