VoIp technology

A blj Listen to an interview with Sue Reid, a specialist in telecommunications. What is her prediction about the future of VoIP?

в E Listen again and answer these questions.

1. What exactly is VoIP?

2. Does the recipient need any special equipment?

3. What is an ATA? What is its function?

4. What is the advantage of Wi-Fi phones over mobile phones?

5. Do you need to have a VoIP service provider?

6. What is spit?

A wireless VoIP phone

Using the diagram, explain VoIP technology in your own words.

с P

Telephone

Computer

Computer

Cable/DSL

Telephone

modem

Wireless access point ^■

Wi-Fi phone

Mobile phones

A Label the mobile phone with features from the box.

LCD screen Brand Built-in camera Changeable faceplate SIM card (Subscriber Identity Module) Wireless support Keypad Ringtone

в P

In pairs, describe your mobile phone.

Use A and the Useful language box to help you.

Useful language

My phone is a... It's got a... With the..., I can...

The best feature is... I never use the... I mostly use it for...

С

1

2

3

4

5

6

7

8

P

In pairs, discuss these questions.

How much money do you spend on your mobile?

Can you send MMS (multimedia messages) from your mobile?

Do you access the Internet from your mobile? Which sites do you visit?

Can you listen to music and watch TV on your mobile?

Do you use your mobile phone for business? Do you think it is secure to carry out financial transactions via mobile phones?

Do you ever use your phone while driving?

Have you ever had to use your phone in an emergency?

Do you think that prolonged use of mobile phones can affect our health (for example cause fatigue and headaches, emit radiation, excite brain cells, etc.)?

SQO

ssz

An Apple iPhone combines three products - a mobile phone, an iPod, and an internet device with email, web browsing, maps and searching

D LP. Write a summary of the discussion in С as if you were posting it on a blog. Show your summary to other members of your class so that they can add comments.

unit 28 Networks

Small networks

аУ In pairs, discuss these questions.

1. What is a computer network?

2. What are the benefits of using networks?

в E Listen to an extract from a lecture on networks and answer these questions.

1. What does LAN stand for?

2. Where are LANs usually located?

3. What is the difference between a wired LAN and a wireless LAN.

   с E

Listen again and label the elements of this LAN.

wired and wireless LAN

(DA

Internet

s

Desktop

computer

Lf

Laptop

(3)

(5)

or hub

, (6)

Gaming

console

■fl

PDA

Desktop computer

Printer Desktop computer

Networking FAQs

A Look at the FAQs (i-vi) without reading the whole text. In pairs, try to answer as many of the questions as you can. В Read the whole text and answer these questions.

What does PAN stand for?

What is a network protocol?

How do you log on to an Internet Service Provider?

WiMAX is a type of wireless network. What is it used for?

What eguipment do you need to set up a wireless LAN?

What are the advantages and disadvantages of wireless networks?

Networking FAQs