Voice Over Internet Protocol Applications and Interfaces

Alex AndrusKayci CedarsMiranda Palmisano

What is Voice Over Internet Protocol?

• VoIP is the process of sending an audio signal

Pros and Cons of VoIP

Advantages• Lower cost• Portability• Many added

features

Disadvantages• Quality of Service• Security• Power Dependency

Circuit Switching

Packet SwitchingDid you

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Packet Switching

IP Phone

RJ-45 Ethernet

Uses your Router

Wifi Phones

What is a Softphone?Allows you to make

calls over the internet from a computer or other smart device

Piece of software that acts as a phone

interface

Allows you to dial phone numbers and

carry out other phone related functions

Examples: Skype, Oovoo, Yahoo Voice

Softphone Prerequisites

Computer minimum hardware requirements

IP telephony client installed

Digital telephone switch communication

Full-duplex sound card

Microphone, speakers

PBX System…

Miranda

Private Branch Exchange (PBX)

The hardware that controls the phone lines and extensions of a company.

Exchanges calls between the internal phone extensions within your office as well as manages the inbound and outbound calls.

Works over the Internet instead of through traditional phone lines. Employees can connect to the company phone system wherever they are as long as they have internet.

Most cost-effective choice for smaller businesses.

Features Provided by a PBX System

• Voicemail to email• No need for separate phone wiring• Allows easy roaming – SIP• Better reporting• Easier to manage because of web based

configuration interface

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