Voice over Internet Protocol (VoIP) is technology that allows voice communication over the Internet using a high-speed Internet connection instead of an analog telephone line. VoIP services convert your voice into a digital signal that is split into packets. The packets travel over the internet to reach the recipient of the call.
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Latency & Jitter in VoIP: Causes & How to debug
Delay is caused when packets of voice data take longer than expected to reach their destination. This delay, called latency, causes some disturbances in voice quality. But VoIP technology is equipped to handle some delays, so the effects are minimized.
When packets are sent over a network to a destination computer, IP phone, or VoIP service, some of them may be delayed. Reliability features in the voice quality mechanism ensure that a conversation is not stuck waiting for a packet that did not arrive on time. Many factors affect the packet journey from source to destination, and one of them is the underlying network.
The delayed package may arrive late or may not arrive at all, in which case it is lost. Quality of Service (QoS) considerations for voice are relatively tolerant of packet loss, compared to text. If you lose a word or a zero in the balance, your text can mean something completely different. If you drop a "hu" or a "ha" in a speech, it doesn't make a big impact, except for a voice quality problem. In addition, a voice equalization mechanism regulates the conversation so that you do not feel the hum.
