Posts Tagged ‘Digital Signal’

March 24 2009

VoIP – What is it and How it Works

voip
lisa asked:


VoIP – WHAT IS IT AND HOW IT WORKS

 

VoIP or Voice-over-Internet is a technology that allows you to make voice phone calls over the Internet.  It’s through the use of a broadband Internet connection that allows you to do this. Some companies and their equipment only offer you the service of calling others with the same VoIP while other companies allow you to call anyone, anywhere with a phone number, it doesn’t matter what service provider they have.   

 

Your voice is converted into a digital signal and is carried over the Internet with VoIP technology. If you are calling someone who has a regular telephone, then the signal is converted to a telephone signal before it reaches its target. You may use a special adaptor connected to a phone using VoIP to make your phone call, a regular phone or the computer. Furthermore, there are what’s known as ‘hot spots’ where you can use wireless Internet connections with VoIP to connect wirelessly to make phone calls while you are at the airport, business meetings or a café downtown. You might have to have a special connector on your wireless phone to be able to make these calls, check with your provider.

 

In order for the VoIP to work you will need a broadband – high speed Internet connection. This can be through a regular cable modem, local Internet provider or a high speed DSL carrier. You will also need a computer, an adaptor or a specialized phone in order to hook up to VoIP. Some VoIP services only work over the computer and not with a telephone, so if you are going to use your computer to make the phone calls, an inexpensive microphone and special software – which you can obtain from the provider – will do. Other providers of VoIP services will supply you with a VoIP adaptor in which you plug into the computer and also into a regular phone so that you can dial just like always.

 

Check with your provider before purchasing service with them. Some providers only allow you to call other people with the same VoIP or similar services. You will not be able to call everyone you know if they are using a regular telephone company. Many other companies have it set up where you can call anyone, anywhere, even if they do not have a VoIP set up. You will h

VoIP – WHAT IS IT AND HOW IT WORKS

 

VoIP or Voice-over-Internet is a technology that allows you to make voice phone calls over the Internet.  It’s through the use of a broadband Internet connection that allows you to do this. Some companies and their equipment only offer you the service of calling others with the same VoIP while other companies allow you to call anyone, anywhere with a phone number, it doesn’t matter what service provider they have.   

 
Your voice is converted into a digital signal and is carried over the Internet with VoIP technology. If you are calling someone who has a regular telephone, then the signal is converted to a telephone signal before it reaches its target. You may use a special adaptor connected to a phone using VoIP to make your phone call, a regular phone or the computer. Furthermore, there are what’s known as ‘hot spots’ where you can use wireless Internet connections with VoIP to connect wirelessly to make phone calls while you are at the airport, business meetings or a café downtown. You might have to have a special connector on your wireless phone to be able to make these calls, check with your provider.

 

In order for the VoIP to work you will need a broadband – high speed Internet connection. This can be through a regular cable modem, local Internet provider or a high speed DSL carrier. You will also need a computer, an adaptor or a specialized phone in order to hook up to VoIP. Some VoIP services only work over the computer and not with a telephone, so if you are going to use your computer to make the phone calls, an inexpensive microphone and special software – which you can obtain from the provider – will do. Other providers of VoIP services will supply you with a VoIP adaptor in which you plug into the computer and also into a regular phone so that you can dial just like always.

 

Check with your provider before purchasing service with them. Some providers only allow you to call other people with the same VoIP or similar services. You will not be able to call everyone you know if they are using a regular telephone company. Many other companies have it set up where you can call anyone, anywhere, even if they do not have a VoIP set up. You will have to check with the provider of your services about long distance charges, because sometimes there is going to be a charge for long distance usage.

 

One of the disadvantages of using a VoIP only telephone connection is that you may not be able to dial or connect with 9-1-1 emergency services operators. You will want to check with the VoIP provider before signing up to make sure they can offer you the 9-1-1 emergency services connection. If they do offer the 9-1-1 emergency services, the calls are handled a little differently and you may experience some minor wait time before your call is connected to the emergency services operator.  

 

ave to check with the provider of your services about long distance charges, because sometimes there is going to be a charge for long distance usage.

 

 

One of the disadvantages of using a VoIP only telephone connection is that you may not be able to dial or connect with 9-1-1 emergency services operators. You will want to check with the VoIP provider before signing up to make sure they can offer you the 9-1-1 emergency services connection. If they do offer the 9-1-1 emergency services, the calls are handled a little differently and you may experience some minor wait time before your call is connected to the emergency services operator.  

 



March 15 2009

A Basic Insight Into the Technology Behind VoIP Phones

voip
Dennis Jaylon asked:


A VoIP phone can be defined as an entity that is used to make telephone calls over the internet. A VoIP phone utilises the Voice over Internet Protocol (VoIP) technology wherein our voice is converted into digital signal that is transmitted over the Internet. VoIP phones enable you to enjoy the benefits of VoIP technology.

The VoIP technology is based on protocols, such as SIP, H.323 or proprietary ones like Skype.

How is voice transmitted using the VoIP technology?

VoIP phone—>broadband router—> Internet—> voip service provider

Well, if you do not wish to spend on purchasing a new VoIP phone, just connect your existing analogue telephone to a VoIP phone adaptor and enjoy the benefits of VoIP. There are many VoIP service providers who allow you to use the service on your analogue telephones. With the VoIP phone adaptor, you do not need a VoIP phone or a computer to avail the VoIP service. The analogue telephone connects to the broadband router through the adaptor. The router connects to the Internet.

standard analogue telephone—>voip adaptor—>broadband router—> Internet—> voip service provider

The UK phone users may need an RJ11 adaptor to convert their standard BT Connector to an International Connector. RJ11 adaptor may be bought with a VoIP Phone Adaptor.

Broadband routers have built-in VoIP and can also be used as VoIP Phone Adaptors. You can buy these routers online.

What are the things required to avail the benefits of VoIP service?

VoIP hardware:

voip phones

can be plugged it straight into a network or a broadband router

voip adaptors

used when you need to avail voip service through an analogue telephone

voip-compatible router

provide access to the Internet for multiple devices (can be wired or wireless)

softphone

a software-based phone that operates from a PC

uses Internet connection to make VoIP calls

can be used with a USB Phone or PC Headset

Internet connection

subscription to a VoIP service

VoIP is indeed a cutting-edge technology that has revolutionised the telephony system to a great extent.