How many MB is a phone call?

How Much Data Does a Phone Call Use?

Contrary to popular belief, phone calls, even high-definition ones, consume remarkably little data compared to other online activities such as streaming video. The data usage of a typical phone conversation is measured in megabits per second (Mbps), with most calls utilizing only a fraction of an Mbps. This amount is significantly lower than the bandwidth required for streaming video, which can range from a few Mbps to several gigabytes per hour.

The exact data consumption of a phone call can vary depending on several factors, including the type of call (e.g., voice only, video call), the codec used for audio compression, and the network conditions. However, in general, the data usage for a per-minute phone call is negligible.

For example, a typical voice-only phone call using a standard codec such as G.729 consumes approximately 0.008 Mbps. This means that a one-hour phone call would use approximately 0.48 MB of data. Even high-definition voice calls using a codec like Opus require only around 0.06-0.12 Mbps, resulting in data usage of approximately 3.6-7.2 MB per hour.

Therefore, phone calls, regardless of their audio quality, have a minimal impact on data consumption compared to other online activities. This is because the data transmitted during a phone call primarily consists of the compressed audio signal, which is relatively small in size. As a result, phone calls can be made with confidence without incurring significant data charges, even on mobile networks with limited data plans.