Click on provider name for link to provider website. Click on "sp" for short provider profile
Mobile VoIP. Application runs VoIP on the mobile phone itself and can provide complete end-to-end VoIP connections between phones over cellular data or WiFi connections. Some applications require that the phone has inbuilt VoIP capability.
Call-Back The application on your mobile uses the mobile data channel to signal the service to set-up the call. The service makes a call to your contact at the same time calling back to you and connects the two calls together when both you and your party have answered.
Call-Through The application makes a call to a local point and the service sets up automatically a further call over a low cost connection to the contact that you are calling.
Both call-back and call-through involve a local call for which you might be charged by your regular service provider.
Web App The service provides a website designed to work well on mobile phone displays and mobile web browsers. You use your mobile’s data connection and browser to visit the website where you initiate the call by selecting or providing the number you want to call. The service makes a call to your contact at the same time calling back to you and connects the two calls together when both you and your party have answered.
Alias Local Numbers You are allocated a local phone number for each international contact that you regularly call. The local number can be stored in your mobile phone address book for that contact and you simply select that contact in your address book to be connected to them.
International SIM Cards Providers of these International SIM cards have a roaming agreement with a local mobile service provider in each country so that the SIM card is recognised as a “local” card in that country and calls made in that country are treated as local calls. Calls made outside the country are international calls. This is in contrast to certain “international” SIM cards that have a number in an unusual country that charges very high termination rates to incoming calls.
| Voice Calling Services – Basic Types | ||||||
|---|---|---|---|---|---|---|
| Provider | Mobile Phone App | Web App | Alias Local Numbers | ISIM Card | ||
| Mobile VoIP | Call-Back | Call-Through | ||||
| fring sp | Y | |||||
| Gizmo5 sp | Y | Y | ||||
| Google Voice sp | ||||||
| iCall sp | Y | |||||
| iSkoot sp | Y | |||||
| JAJAH sp | Y | Y | Y | |||
| Manifone sp | Y | |||||
| MAXroam sp | Y | |||||
| mig33 sp | Y | Y | ||||
| MO-Call sp | Y | Y | ||||
| Nimbuzz sp | Y | Y | Y | |||
| PennyTel sp | Y | Y | Y | |||
| Rebtel sp | Y | |||||
| SHAPE Services sp | ||||||
| Skype sp | Y | Y | ||||
| TringMe sp | Y | Y | ||||
| Truphone sp | Y | Y | Y | Y | ||
| Vopium sp | Y | Y | ||||
| Voxofon sp | Y | Y | ||||
| Vyke sp | Y | Y | ||||
Table Notes