VoIPEduardo Esparza

Cloudette Solis

Luis Flores

What is VoIP?

• Voice over Internet Protocol (VoIP) technology lets you use the Internet to make and receive telephone calls.

Internet telephony. It is another way of making phone calls but cheaperOr completely free.

VoIP can let you communicate without a telephone set

History

• Has been arround in one form on another since 1973• Begun as an experiment by the US Department of

Defense• Was originally designed for data networking

How it Works

• VoIP calls require media channel setup, analog voice signal digitalization, encoding, packeting and transmission of IP packets via packet-switched network. On the receiving end, there will also be packet-decoding, conversion of analog signals to digital signals, and IP packets reception.

• VoIP uses audio codecs that encode speech and allow transmission via IP network. Network bandwidth and application requirements will determine which codec will be used. Some implementations use high fidelity stereo codecs, whereas others use compressed speech.

VoIP Services

• ATA.  use of a device called an ATA (analog telephone adaptor). The ATA allows you to connect a standard phone to your computer or your Internet connection for use with VoIP.  It takes the analog signal from your traditional phone and converts it into digital data for transmission over the Internet.

• IP Phones look just like normal phones with a handset, But instead of having the standard RJ-11 phone connectors, IP phones have an RJ-45 Ethernet connector

• Computer-to-computer. All you need is the software, a microphone, speakers, a sound card and an Internet connection,

VoIP is available in a wide range of services. Some basic, free VoIP services require all parties to be at their computers to make or receive calls. Others let you call from a traditional telephone handset or even a cell phone to any other phone.

• The Range of Services

Examples

Equipment

• For VoIP, you need a broadband Internet connection, plus a traditional phone and an adapter; a VoIP-enabled phone; or VoIP software on your computer.

Security and Service Quality

•Most consumer VoIP services use the Internet for phone calls. But many small businesses are using VoIP and unified communications on their private networks. That's because private networks provide stronger security and service quality than the public Internet.

Versus Unified Communications

•Unified communications systems offer more features and benefits than VoIP, yet many are still priced for small businesses. Unified communications brings together all forms of communication regardless of location, time or device. Faxes, e-mail, and voicemail are all delivered to a single inbox. You can integrate your phone and customer relationship management (CRM) systems to improve your customer service, and much more.

The Benefits

•- VoIP and unified communications enable you to:- Reduce travel and training costs, thanks to web and video conferencing- Easily grow your phone system as needed- Have one phone number ring simultaneously on multiple devices, helping employees stay connected to each other and to customers- Reduce your phone charges- Have a single network for voice and data, simplifying management and reducing costs- Access your phone system's features at home or at client offices, in airports and hotels—anywhere you've got a broadband connection

Disadvantages

• Need of a good internet connection• Voice Quality• Power dependency• Security• Emergency calls