Internet Protocol (IP) Telephony has many issues that have to be overcome before it can be considered a rival to the existing telephony infrastructure. One such issue is the quality of service. The use of play-out buffering at the receiver helps to improve the quality of Voice over IP (VoIP). A buffering algorithm has been proposed by Narbutt, which uses a dynamic approach to buffering. This algorithm is adjusted automatically according to an estimate of the network delay. This is more suitable to the changing network conditions usually experi ....etc

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Telephony: history and evolution
IP Telephony: What, Why & Where?
q Adding interactive multimedia to the web
q Being able to do telephony on IP with a variety of devices
q Consumer & business markets
q Key element of convergence in carrier infrastructure
Basic IP telephony model
q Protocols: SIP, H.323, RTP, Coding schemes, Megaco
q Future: Invisible IP telephony and control of appliances
What is VoIP?
Why VoIP?
Where is VoIP Today?
What is VoIP?
q Telephony over IP standards bodies
q I ....etc

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Session Initiation Protocol (SIP) is a protocol developed by IETF MMUSIC Working Group and proposed standard for initiating, modifying, and terminating an interactive user session that involves multimedia elements such as video, voice, instant messaging, online games, and virtual reality.
SIP clients traditionally use TCP and UDP port 5060 to connect to SIP servers and other SIP endpoints. SIP is primarily used in setting up and tearing down voice or video calls. However, it can be used in any application where session initiation is a requirem ....etc

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Session Initiation Protocol
Session Initiation Protocol (SIP) is a protocol developed by IETF MMUSIC Working Group and proposed standard for initiating, modifying, and terminating an interactive user session that involves multimedia elements such as video, voice, instant messaging, online games, and virtual reality.
SIP clients traditionally use TCP and UDP port 5060 to connect to SIP servers and other SIP endpoints. SIP is primarily used in setting up and tearing down voice or video calls. However, it can be used in any application where ses ....etc

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Mobile based sip-communicator ,real time application implemented using j2me and sip api,The Session Initiation Protocol (SIP) is a signaling protocol used for establishing and controlling multimedia communication sessions on networks that use the Internet Protocol (IP). A session is as simple as a two-way phone call. SIP was primarily designed to establish, modify, and terminate sessions, This simplicity makes SIP quite scalable and extensible, and it can be used easily in different architectures and deployment scenarios. SIP is already being u ....etc

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Session Initiation Protocol (SIP) is a protocol developed by IETF MMUSIC Working Group and proposed standard for initiating, modifying, and terminating an interactive user session that involves multimedia elements such as video, voice, instant messaging, online games, and virtual reality.
SIP clients traditionally use TCP and UDP port 5060 to connect to SIP servers and other SIP endpoints. SIP is primarily used in setting up and tearing down voice or video calls. However, it can be used in any application where session initiation is a requirem ....etc

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Broadband and advancements in voice technologies are changing the way we used to communicate. Long distance telephone calls are made cheaper by services like skype and Jaxter. The same technology is affecting mobile services also. Most new phones have lots of memory and processing power. And with the data services on mobiles improving, its possible to place internet phone calls via mobiles.

J2me provides a SIP API specifically for this purpose. Using this API an application can be developed that can communicate with any SIP service and that ....etc

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Uncovered & Covered Option Synthetic Futures & Options
Uncovered Option
 No offsetting positions
 Unlimited potential losses.
 Attractive profits
 Risk tolerance
Covered Option
 Offsetting positions
 Covered call sale= short call + Long futures
 Covered put sale= short put + short futures
Synthetic Futures
 Combining two option position
 Synthetic long futures=long call+ short put
 Synthetic short futures= long put + short call
Synthetic Option
Co ....etc

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SIP




Session Initiation Protocol (SIP) is a protocol developed by IETF MMUSIC Working Group and proposed standard for initiating, modifying, and terminating an interactive user session that involves multimedia elements such as video, voice, instant messaging, online games, and virtual reality.
SIP clients traditionally use TCP and UDP port 5060 to connect to SIP servers and other SIP endpoints. SIP is primarily used in setting up and tearing down voice or video calls. However, it can be used in any application where session initiation ....etc

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hi,
my name is sreedutt.i need the above specified topic for my project.please help ....etc

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