VoIP Speed Test

A simple metric that summarizes overall audio clarity, derived from the MOS score.Shows how many agents can be on calls at once without hitting quality issues.Vital for team planning in sales/support teams.

Calilio-branded customer experience index, derived from MOS, jitter, latency, and packet loss. Translates technical impairments into a perception-based score of how customers will feel on calls.

Shows if your network can keep calls smooth and consistent without dropouts. Derived from jitter and packet loss.For Great customer experience. Your team can handle calls without interruptions

The Mean Opinion Score is a standardized measure of perceived voice call quality, ranging from 1 (Bad) to 5 (Excellent). Originally, MOS was obtained by asking people to rate calls, but today it’s calculated using the E-Model (ITU-T G.107), which estimates user perception based on latency, jitter, and packet loss. MOS helps translate raw network conditions into a single quality score that both engineers and business users can understand. One easy score that blends delay, loss, and jitter. Higher MOS means crisper audio and fewer call repeats.

Measure the time between the packet sent and the packet received.As the latency increases conversations become unnatural, and the agents and customers may hear delayed responses.

The actual upstream bandwidth available during the simulated VoIP test. Critical for VoIP since outgoing audio must reach the server in real time. Insufficient upload throughput can prevent agents’ voices from reaching customers clearly. Adequate upload capacity is essential to handle multiple conversations at once.

Variation in packet arrival times.As jitter increases calls sound choppy, words are cut off, and audio skips.

Percentage of packets lost during transmission.Packet loss leads to broken audio where words or sentences are lost and, if severe, can cause complete call drops.

The sustained bitrate used by the audio codec. Determines the richness and clarity of the audio stream.As jitter increases calls sound choppy, words are cut off, and audio skips.