1. VoIP
Eduardo Esparza
Cloudette Solis
Luis Flores

2. • 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 cheaper
Or completely free.
VoIP can let you communicate without
a telephone set
What is VoIP?

3. • 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
History

4. • 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.
How it Works

5. • 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 Services

6. • The Range of Services
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.

7. Examples

8. • 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.
Equipment

9. •
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.
Security and Service
Quality

10. •
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.
Versus Unified
Communications

11. •
- 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
The Benefits

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