Speed Test

Running a VoIP speed test is the best way to confirm if your existing Internet connection can handle VoIP. When making a VoIP phone call, the sound of your voice is broken into thousands of packets. These packets travel various paths along the Internet on to their final destination where they are reassembled. Many factors can affect packets on this journey, and thus impact the quality of the call. The four most common: bandwidth, latency, jitter and packet loss.

Bandwidth

Bandwidth is the amount of information which your Internet connection can send and receive in a certain period of time. The Codec encodes a data stream or signal for transmission.

Latency

Latency (or lag) is the length of time it takes a voice packet to reach a destination. Long latency can lead to delay and voice echo. Under 150 milliseconds is acceptable for most applications.

Jitter

Jitter is the variance of the latency for each voice packet to reach the destination. Under 20 milliseconds is acceptable for most applications.

Packet Loss

Packet loss measures how many voice packets did not reach the destination > Just 1% voice packet loss can significantly degrade a VoIP call.