ROLLNO: 26 TO 30

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26 FAISAL

27 PINKY

28 SUNIL

29 PUJA

30 GAURAV

TRADITIONAL ANALOG SYSTEMS

What is VoIP?

Why VoIP?

Benefits of VoIP

Recommendations

Q/A

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• Tremendous Quality of Service Built In.– End-to-end connection.

– Could carry more than just a voice connection.

– Bandwidth is wasted.

– It’s like having your own personal LIMO.4

VoIP = “Voice over Internet Protocol”

IP TELPHONY (VOICE over IP)

Transmission of voice telephone calls

using internet infrastructure.

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Several conversations onto the same wires.

Circuits carry data packets as well.

An efficient use of bandwidth.

It’s like having a fleet of shared taxis.

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IP Networks were not same as Analog Phone Networks

Packets may be lost or delayed.

Re-transmission of missing packets

From a data standpoint, a user may wait an extra second for a web page to load

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Why need to IP Telephony?

Economic (uses internet, IP routers...)

Further savings.

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IP Telephony Ranked Second on List of Technologies Associated with Improved Employee Productivity

IP Telephony Ranked Second on List of Technologies Associated with Improved Employee Productivity

Source: Sage Research, January 2012

Virtual Private Networks

IP Telephony

Wireless LANs

Wireless Email

Mobile Technology

Instant Messaging

Other

60%

54%

47%

30%

26%

18%18%

2%2%

Broadband Network

Call Direction

IP Protocol

VoIP VoIP

VoIP to VoIP

Internet/Broadband

PSTN

Server/Gateway India

United States Mumbai

Call Direction

IP Protocol

VoIP

VoIP to POTS with Internet

Continuously audio.

Send the resulting digitized stream

Before the procedure above, the system must handle call setup. Phnumber to IP.

But Voice Networks cannot tolerate delay and missing packets To be effective.

You can’t have 2-3 second delays in the middle.

Initially proved to be a barrier to the mainstream adoption of VoIP.

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Signaling: Mapping. Route to the called party. Handling other details.

Signaling System 7 (SS7

IETFSession Initiation Protocol (SIP) ITUH.323Aboves must be able to interact with SS7

Internet/Broadband

PSTN

Server/Gateway India

United StatesNew Delhi

Call Direction

IP Protocol

VoIP

Benefits of VoIP

Recent benefits in Networking have overcome the Quality of Service Issues Protocols have been developed to provide

an adequate level of service and quality Network Switching equipment has

evolved to give Voice traffic priority over Data traffic

Virtual Local Area Networks (VLANs) can segregate Voice and Data traffic

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• Put Voice, Data and Video on to one Network and achieve savings and flexibility– Eliminate redundant Networks– Consolidate IT Staff– Simplify Administration and Maintenance– Reduce hardware– Reduce cabling – 1 cable for voice and data– Reduce WAN Charges

• Converged Networks are the key

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email

Voice Messaging

CollaborationCalendar

Video Conferencing

Web Application

Audio Conferencing

Instant Messaging

TelephoneServices

Security

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• For existing Installations– IP Enable your Existing PBX– Deploy VoIP initially where needed

• Sales• Call Centers• Tele-workers - #1 application• Wireless

– PDAs– Soft Phones (Laptops)– WoVoiP

– Implement VoIP on the WAN between Sites– Phased approach – leverage existing

investment23

• VoIP is the Strategic Direction of Carriers and Vendors– Conventional Systems will become outdated

and expensive to maintain and upgrade• VoIP provides a Feature Rich and Cost

Effective Architecture– New features and services will be added to

VoIP Systems– Competitive Pressures will force many

Industries to Upgrade to keep pace

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VoIP Investment Protection IP Enable Existing Systems Take advantage of new features where you

need them now Migrate based on budgets and business

needs VoIP can Reduce Maintenance

Expenses Moves, Adds, Changes are simplified Converged Networks = Fewer Systems

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