Interview Question for VOIP
Common VoIP Problems
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7.
Jitter and Latency
Echo
Devices that won’t make and/or receive calls.
Choppy audio and low-quality calls
No sound once a call connects.
Dropped calls.
Phone doesn’t ring when receiving inbound calls.
1. Jitter and Latency
 VoIP jitter occurs when parts of an active VoIP phone call are sent to the
recipient out of order, making your conversation nonsensical, garbled, or
choppy.
 Latency results from an audio delay, meaning the speaker’s voice takes a
long time to reach the recipient.
Troubleshoot Jitter and Latency
 Clear bandwidth space on your local network:
This may require
purchasing a new router that supports faster data speeds, or reducing
local network traffic by limiting the number of concurrent users
 Evaluate your Internet Service Provider:
Your internet may not have
enough bandwidth to power all your connected devices. Contact your
Internet Service Provider (ISP) to upgrade your internet connectivity.
 Install a jitter buffer:
Once installed on virtual phones, jitter buffers
cause slight delivery delays in order to reorder packets in real-time,
fixing jitter.
2. Echo
 Phone echoing is when voices loudly repeat at varying intervals during a
call, making it difficult to follow the conversation. If the speaker, the
recipient, or all parties experience echoing, there’s a VoIP connection issue.