A user reports that their VoIP calls are frequently choppy, with words sometimes arriving out of order or getting dropped. Which of the following network issues is the MOST likely cause of this type of audio distortion?
Jitter
High latency
External interference
Port flapping
The correct answer is jitter. Jitter is the variation in the delay of received packets. In VoIP communications, voice is converted into data packets that are sent over the network. High jitter means these packets arrive at inconsistent intervals and potentially out of order, which results in choppy, garbled, or distorted audio quality. While high latency can cause overall delays in a conversation, jitter is the specific cause of the choppy and out-of-order audio symptoms described. Port flapping would cause intermittent connection loss, and external interference could cause various issues, but jitter is the most direct cause of these specific VoIP symptoms.
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