Although Internet speed is seldom as fast as advertised, in general, anything faster than dialup (including the kind of "web" connectivity available on smartphones) should be adequate for VoIP. Our free trials allow you to verify this statement risk-free. As a rule of thumb, if your Internet can handle 200 kbps, (or 0.2 Mbps), you're good to go.

Note that kbps or kilobits per second is different from kBps or kiloBytes per second by a factor of 8, as 1 Byte = 8 bits. This often creates confusion. To determine more accurately your line speed, consider using a testing service, such as SpeedTest.net. Try testing at peak hours, which are usually in the evenings, as that is when connectivity suffers most. If your connection is faster than 0.200 Mbps for both upload and download, you will have no problem using VoIP.