Evaluation of Some Voice Over IP Services Providers

Evaluation of Some Voice Over IP Services Providers

 

 

 

 

 

 

 

 

 

By

Dr. Hedaya Mahmood Alasooly

Hedaya_alasooly@yahoo.com

 

 

1. Introduction:

1. Introduction:

 

This book provides brief survey of the some Voice Over IP (VOIP) providers, including the providers that offers free calls to some countries. Then, I will mention some websites that offer virtual phone numbers from around the world to receive activation codes and SMS confirmations online.

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The report consists from the following parts:

1. How does VOIP work?

2. Getting free phone number in US or Canada and other countries

3. Betamax (Dellmont sarl) VOIP Service Provider.

4. Some free websites that can be used to receive SMS online using numbers from some countries.

5. Best websites that offer SMS verification, sending SMS and renting number services.

6. Inphonex VOIP Provider.

7. eFax

8. VOIP Frequently asked equestions.      

 

2. How does VOIP work?

2. How does VOIP work?

The most common way VoIP works is that the end user establishes a hi speed broadband connection, a router and a VoIP gateway. Instead of a standard telephone line, the router sends the telephone calls over an internet connection. The VoIP gateway, placed somewhere in direct proximity of the connected Internet converts the analog signals into digital format, which are further broken down into smaller chunks called 'packets', before sending it over the internet, much like the way data is transmitted to and from the computer. These packets are sent to their final destination and instructions for bringing back into an understandable form are embedded in them. It then goes through a VoIP gateway where the packets are reconverted into the original analog format utilizing a PSTN (Public Telephone Switch Network), thereby routing the call to the number the caller has dialed blending old school technology and hi tech delivery in a seamless and instantaneous way.

How can we get free VoIP?

• Free VoIP PC-to-PC Calls: Free VoIP software is available for both Unix/Linux and Microsoft Windows. With one of these free VoIP software packages, you can place PC-to-PC calls across the Internet. Skype is a unique advertiser-supported service which provides free VoIP service for PC-to-PC calls. The key limitation here is PC-to-PC calls -- you cannot place a call to a regular telephone number for free. This is because someone must pay for the infrastructure to connect the Internet to the telephone system and also pay for the call time used on the telephone system.
• Free VoIP PC-to-Phone Calls: To make PC-to-Phone calls, you could install a VoIP gateway or a PBX which acts as a VoIP gateway. However, you will then need to hook your VoIP gateway or PBX up to the PSTN (Public Switched Telephone Network) somehow, and for that you will have to pay the telephone company. Alternatively, you can sign-up to a service like Vonage, AT&T CallVantage, or Lingo VOIP which will enable you to make PC-to-Phone calls for a flat monthly fee. If you purchase a VoIP phone, or a VoIP converter for your telephone, you can use a very normal-looking telephone to place PC-to-PC and PC-to-Phone calls. This is often more convenient than using your PC to place telephone calls.

 

Impressum

Verlag: BookRix GmbH & Co. KG

Tag der Veröffentlichung: 05.04.2021
ISBN: 978-3-7487-7928-5

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