Dingtone Internet Call utilizes a device’s data connection to transmit voice. The user’s voice is digitized into small packets (20-50 packets per second) and then transmitted evenly to the receiver. Because the voice is broken into these small packets, they must be reassembled at the other end. If the connection is bad, the packets won’t be reassembled as evenly as they were transmitted. Thus, the stability of the data connection has a huge impact on call quality.
If your device connects to a WiFi network when you are making a call, please stay as close as possible to the WiFi hotspot. Do NOT download large files or watch videos on other devices that connect to the same WiFi hotspot.
If your device connects to a 3G or 4G network, cellular signal with less than 3 bar usually indicates bad network conditions, and poor call quality.
The WiFi signal only measures the link between your device and the hotspot. The connection from the hotspot to the Internet is another key factor. For example, when you are connecting to a corporate WiFi hotspot or a public WiFi hotspot, you are not the only person who is accessing the Internet. As a result, you will still see a full-bar WiFi signal but the connection from the hotspot to the Internet may be very slow.
The cellular signal only measures the link between your device and the cell tower. If lots of smartphones are connecting to the same cell tower, the data connection may become very slow. This is a common situation in areas like New York and San Francisco.
Dingtone has deployed a global network which covers all of the developed and major emerging countries. However, there are some countries where Dingtone does not have a network presence. If you happen to be in one of those countries, the data connection from your device to our servers may be slow even though your device shows a strong signal.
If your device has a poor network connection, or even no data network connection, you can still make cheap phone calls. There are two available options:
If you are in a country where we provide local dial-in numbers (such as the United States, UK, and others), Dingtone will use your phone to dial a local access number which then re-routes the call to the destination phone number.
For example, if you are a Dingtone user in the U.S. and you want to call your friend in India, Dingtone will first dial a local U.S. phone number (for example, 408-123-4567) to connect to the Dingtone servers. Once connected, our system will bridge the call to India.
If you have ever used a calling card, you will be familiar with this service. Dingtone, however, is much easier to use than a calling card.
Local dial-in works even when your phone has no data network connection.
Callback works in two steps. First, our system dials your phone number (callback). After you pick up the call from Dingtone, we dial the destination number and bridge the two calls together in our system.
Callback service works even under poor network conditions but if your phone has absolutely no data network connection, callback does not work.