Vopium

Vopium is a VoIP provider for mobile devices that allows you to place and receive very cheap international calls from and to any mobile or landline phones. Vopium runs on Symbian, Windows Mobile, Blackberry (RIM) and Java operating systems for Nokia, Sony-Ericsson, Samsung, HTC and Motorola devices. You just need to register for free to the service, choose the best pricing plan for your needs. With Vopium, you can also send and receive SMS text messages using GPRS, 3G or Wi-Fi connections. Other features supported are: instant messaging, online backup of contacts and calendars, Vopium Just-Dial for calls from landline phones that do not require the software installation, and more. Voicemail is not available.

Vopium call rates

http://vopium.com/

VPhonet

VPhonet is a free software for Windows only that lets you call from your PC any other VPhonet user for free by leveraging the VoIP protocol. You can also place and receive cheap international calls from / to a mobile device or landline phone by purchasing VPhonet credits. You need to register to use the service and you must have a broadband Internet connection for placing the calls properly. The service also supports SMS text messages, voice conferencing, video calls and instant messaging. The voicemail function is available through the answering machine facility.

VPhonet call rates

http://www.vphonet.com/

Ippi

Ippi is a VoIP service that offers a wide range of solutions to make phone calls to any country of the world at very low rates from landline phones, PCs and mobiles. You just need to register for free to the service, and then choose one of the pricing plans which you can pay for on a monthly basis to place calls. All calls among Ippi members are always free. Voicemail, address book, blocking incoming and outgoing calls, caller Identification and SMS messaging are just a few of the supported features.

Ippi call rates

http://www.ippi.fr/

VoipGATE

VoipGATE offers both residential and business solutions to receive and place international calls from your standard landline phone or PC. You just need to register for free to the service, and then configure your home / office phone or PC softphone to place calls using the VoIP technology. You can also set up an international number where clients and friends can call you at low rates. Voicemail, call forwarding, caller Identification and SMS messaging are all supported features.

VoipGATE call rates

http://www.voipgate.com/

Axvoice

Axvoice is a VoIP calling service for US and Canadian residents that makes you place and receive calls to foreign countries from your standard landline phone. You just need to register for free to the service, purchase a residential or business plan and you will be given the necessary hardware to allow your landline phone to make calls. You can also keep your existing number if you wish. Voicemail, call logs, call forwarding, three-way calling are all supported along many other features. SMS service and mobile application are not available.

Axvoice call rates

http://www.axvoice.com/

Via:Talk

Via:Talk is a fee-based service offering both low cost residential and business calling options. To sign up you need only a VoIP-enabled phone and a broadband Internet connection. Certain configurations may require the purchase of a router. As additional features, Via:Talk features enhanced voicemail, caller ID, three-way calling, SMS text messaging, and a mobile app enabling calls from your iOS device. Via:Talk offers upgrades starting at $8.95/month, which include either 2,000 minutes or unlimited domestic minutes and 1,200 minutes of free international calls.

Via:Talk call rates

http://www.viatalk.com/

VoIP Raider

VoIP Raider is a free software that lets you call the world for free from your computer or mobile phone. You can use VoIP Raider on machines running Windows and as a mobile app for iOS devices (iPhone, iPod Touch and iPad) as well as Nokia / Symbian phones. To make and receive your calls with VoIP Raider, first register and then go purchase phone credits. Peer-to-peer phone calls are always free and unlimited. The service supports SMS text messages from both your computer and mobile. The VoIP-in functionality allows you to have your own landline phone number for a one-time fee (€1) where you can receive your international calls. You can also make / receive calls using VoIP Raider from a regular landline telephone which can also be transferred to your mobile device. Voicemail is not available.

VoIP Raider call rates

http://www.voipraider.com/en/index.html

VoIP Stunt

VoIP Stunt is a VoIP service for Windows that allows you to make and receive free and low-cost calls to / from any mobile and landline telephone on the planet. You can also buy credits to send SMS text messages (from your PC and mobile). If you use more than 5,000 minutes a month, you can apply for a wholesale account which offers even lower rates per call. With the VoIP-in functionality, you can have your own fixed phone number (€1 fee applies). Plus, the Phone-to-Phone feature allows you to make calls from your regular phone at home and to place / receive your incoming calls on your mobile phone. VoIp Stunt is also available as a mobile app for iOS devices and Symbian-based mobiles. The voicemail feature is not available.

VoIP Stunt call rates

http://www.voipstunt.com/

NimbuzzOut

NimbuzzOut VoIP service allows anyone to make cheap phone calls from any PC or mobile phone to any mobile / landline phone. To use NimbuzzOut, you have to download the Nimbuzz application and set up a free account. You also need to buy credits on a pay-as-you-go fashion before you make your first call. NimbuzzOut runs on Mac and Windows machines and the service is available on all major mobile platforms, such as Symbian (Nokia S60 3rd and 5th edition only), iOS, Android, BlackBerry and J2ME. The service works also over 3G, Wi-Fi. You cannot receive calls using NimbuzzOut. SMS text messages and voicemail are not available either.

NimbuzzOut call rates

http://www.nimbuzz.com/en/nimbuzzout/

FreeCall

FreeCall is a free software tool you can install to make and receive international phone calls from your PC or mobile. FreeCall is only available for Windows, but Mac and Linux users can use a free softphone to overcome the problem of a native client missing for their operating systems. After ou register, create an address book with your favorite numbers and then just write the username in the textbox and click on the dial button to place your calls. You can also send / receive SMS text messages. Call forwarding is supported, but mobile app and voicemail are not available.

FreeCall call rates

http://www.freecall.com/en/index.html