Presentation

WelcomeWelcome

Small Office PBX using Voice Over Internet Protocol

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Presented by:

Saugata Bose4th year 2nd semester,

CSE Department,Shah Jalal University of Science and Technology, Sylhet

Presented by:

Saugata Bose4th year 2nd semester,

CSE Department,Shah Jalal University of Science and Technology, Sylhet


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Covered TopicsCovered Topics

VOIP overview Project ObjectivesImplementation and Configuration

VOIP overview Project ObjectivesImplementation and Configuration


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• VOIP• VOIP

“V”oice “O”ver “I”nternet “P”rotocol

• How VOIP works?• How VOIP works?Analog data -> ADC -> Internet -> DAC ->Analog dataAnalog data -> ADC -> Internet -> DAC ->Analog data


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Why VOIP over PSTN?Why VOIP over PSTN?

Flexibility

Just one internet connection and a computer or VOIP enabled softphone

Flexibility

Just one internet connection and a computer or VOIP enabled softphone

Pricing

Free calls!!

Pricing

Free calls!!

Three-Way Calling

Allows to connect three people with just one call.

Three-Way Calling

Allows to connect three people with just one call.

And many more…. And many more….


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Project ObjectivesProject ObjectivesSmall Office PBX using Voice Over Internet Protocol

We implemented this.


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VOIP Signaling ProtocolsVOIP Signaling Protocols

Session Initiation Protocol (SIP)

H.323 Signaling Protocol

Media Gateway Control Protocol (MGCP)

Three signaling protocols

So which we will choose????


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Our Choice……Our Choice……

• The mighty

Asterisk@HomeAsterisk@Home


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Up coming…..Up coming…..

• Configuring Incoming & Outgoing Services

ComponentsComponents

• IP-PBX

• Soft phone

• Gateways


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Components of the Asterisk Server

Components of the Asterisk Server

• A fully dedicated PC

• Fully duplex sound card

• Sufficient Bandwidth


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GatewaysGateways

• VOIPJET

• Broad Voice

• VOIPJET is used for outgoing calls Broad Voice is used for incoming calls


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Sign up for the ServiceSign up for the Service

• Sign up in VoipJet1. Log on there

2. Then I will get an account name and password

3. They will give you the IP address of the server

• Same is true for Broad Voice


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Set up the SIPPhoneSet up the SIPPhone

User Name: 200

Password : abc123

Domain : 192.168.0.40


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CostingCosting

• We have cheaper cost setup than general PBX

• We need 9 dollar as activation fee.

• We need 5$/month for incoming charge if we use Broad Voice

• We need 1.3 cent/minute for outgoing if we use VoipJet.


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Up coming…..Up coming…..

• Configuring Asterisk@Home

How can I make calls using Asterisk??

• My phone no. is 938260

• The other person’s no. is 123456(+200)


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How can I make calls using Asterisk??

Process1:Configure 1. /Trunk. Conf2. /Extension. conf3. /Extension1. conf4. /etc/hosts

Manually file configure

Process2:Configure

Configure through Web Browserhttp:// Ip address of the server


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Concept of making calls

• Need a phone number• Need an extension number• 938260 123456 Asterisk

(+200)


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Configure trunk.conf

User Context: 7327570239User Details:

callerid=7327570239context=from-pstnfromdomain=sip.broadvoice.comhost=sip.broadvoice.comsecret=********type=useruser=7327570239username=7327570239

The number provided by BroadVoice

Server name of the BroadVoice


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Extension1.conf

Extension: 200Password: abc123Full name: basement

Extension.conf

exten => _.,1,Wait(1)

exten => .,2,Goto(from-stn,s,1)


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Thank youThank you