Evolution of Convergence and VOIP

Presented By:Nandita TiwariVijay Deep ShuklaUtkarsh Verma

Convergence

• Convergence can refer to previously separate technologies such as voice (and telephony features), data (and productivity applications) and video that now share resources and interact with each other, synergistically creating new efficiencies.

• Technological convergence is the tendency for different technological systems to evolve towards performing similar tasks. An often used example is when separate technologies such as voice, data and video come together to share resources and interact with each other.

Examples of New Convergent services

• Internet services delivered to TV sets via systems like Web TV;

• E-mail and World Wide Web access via digital TV decoders and mobile phones;

• Web casting of radio and TV programming on the Internet;

• Using the Internet for voice telephony Convergence eliminates the need for duplicate hardware and

special vendors.

Why Convergence?

VoIP/IPT Industry Trends

Enterprise Experiences and Best Practices

Voice over IP: Carrying voice over IP• Used to refer to trunking across the WAN• Now a “catch-all” term for anything related

to voice & data convergence

IP Telephony: Using IP phones• Refers to extending IP all the way out to the

desktop

Examples:• IP Trunking between PBXs with digital

handsets = VoIP• IP phones throughout the organization = IP

Telephony

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Overview• Voice over IP/IP Telephony Represents the

PRESENT of Enterprise Communications– Both internal and external– Brings convergence to multiple forms of

communication– Saves money and improves productivity

• But……– VoIP is unlike most (if not all) applications on the

network– Performance must be guaranteed– Availability must be guaranteed

• A successful deployment of VoIP means addressing infrastructure and management issues BEFORE implementation

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Why VoIP?

• TDM voice is stable, cheap, has worked for years, and delivers the services needed

• So why Replace It ?!?!?!?!?!

– invest in training and Operations Administration and Maintenance

– an infrastructure upgrade– IP Telephony is immature and insecure– might not save money

• So why are we doing this??

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IP Telephony’s Promise

• Because– We may actually lower costs after all

• Simplified network infrastructure• Reduced MAC costs

– Rapid Feature/Application deployment• IP Telephony utilizes the Internet

architecture, similar to the World Wide Web– Applications and Services can be

distributed throughout the network• Adoption of the Internet Model – distributed

applications sharing a common infrastructure– Security capabilities offer better

protection than older voice systems

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IP Telephony’s Promise

• Standard Protocols– TCP/IP and related protocols (H.323, MGCP, SIP)

• Allows for multi-vendor interoperability• Provides more product choice (someday)

• Ubiquitous Access– Plug your phone in anywhere you have an

Internet connection– Soft phones on your PC/Laptop/PDA

• Service Creation– No longer requires call control be on premises– New opportunities to outsource

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Industry Trends

• VoIP/IPT Industry Trends:1. Voice is converging with

collaboration2. SIP is emerging as the de-facto

standard for system interconnection, followed by H.232

3. More services are emerging4. Open source is becoming viable5. Security concerns are getting a lot

of attention

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The Big Picture• Goal: a single communications infrastructure

unifying collaboration, real-time communications, and presence– Convergence not of voice & data, but rather

convergence of all forms of real-time communications into a unified interoperable environment

• Combined with collaboration tools• Integrated into business applications & processes• Extensible beyond organizational boundaries• Delivering measurable business benefit by streamlining and

improving the ability for individuals and groups to communicate

– Voice but just one component of a converged communications & collaboration infrastructure: voice, video, instant messaging, conferencing, collaboration and presence as a unified application

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Enterprise Experiences

1. Enterprises are gradually implementing IP telephony

2. Network management remains the paramount challenge

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Summary

• VoIP deployment is happening, though at a measured rate

• End of lifecycle replacement of legacy systems• Modernization/transformation of call center

operations

• Growth of enterprise VoIP is accelerating• ~ < 12% of PBX market is replaced annually• VoIP equipment revenues have surpassed legacy

revenues in 2006

• Convergence is a positive impact on enterprise

• Security and survivability are concerns but can be managed/overcome

Thank You