There are a lot of VoIP services and software packages available that allow Mac users to make free or cheap VoIP calls. This is important to know because many Mac users are frustrated by the fact that VoIP providers have softphones which are only Windows compatible. If you want to make free or cheap calls from your Mac then you should consider some of these apps and services.
Skype
Skype is possible the most popular of all VoIP services available and it offers a softphone client to more than half a billion of its users. When using Skype you can all other Skype users for free. You can also make video calls, voice calls and have a conference with this service. If you are going to call a mobile phone or landline you will pay low rates.
Skype has been improving the VoIP client for Mac, but there is something that makes it weaker than the Windows version. This is the fact that it is not free, only cheap. If you have a home business then you should look at Skype for Business as a VoIP option.
QuteCom
QuteCom used to be called Wengophone and is a strong, free VoIP client. This service offers what Skype does with SIP compatibility. You will be able to make video and voice calls to people who also use QuteCom as well as cheap calls to mobiles and landlines worldwide.
This service also allows you to send an SMS to mobile devices. You can configure your client to work with any SIP-compatible VoIP service which allows you to use the application as a phone.
iChat
iChat is a VoIP client that comes for free with your Mac operating system so it will already be on your machine. The application is slick and clean with a video-conference function that allows up to 4 people onto a call at once. The primary issue with this application is that you are not able to make calls to mobiles or landlines and can only speak to people who have a Mac.
FaceTime
If you are looking for a simple app for video calling then FaceTime is one of them. This is exclusively for Mac's and does what you want it to very well. However, this is not a free solution and sells on the Apple App Market for a dollar. It is a very high-quality app with crisp HD video and voice communication.
Google Hangouts
Many people assume that this Google product will not work on a Mac. However, you can integrate the tool into your Mac. This is a very useful tool if you have a Gmail account or use other services from Google.
LoudHush
If you are looking for an app that is only for Mac then LoudHush is one of them. This is a VoIP softphone that works with an Asterisk PBX which makes it a less than ideal choice for many people. However, if you do have an account with Asterisk PBX then it will come in handy and offers some very interesting features.
X-Lite
Bespoke VoIP apps for customers is something that Counter path excels at, but they also have many good pre made products. X-Lite is one of the products they have which contains their basic elements of the paid app which is rich in features. This product offers SIP calling and is ideal for anyone looking for something to use in a corporate context.
Viber
Viber is primarily for smartphones as it is one of the many VoIP calling apps that you can get. However, there is also a full application for Mac and PC computers.