General Information
VoIP Calls are comprised of the signaling and audio components. Therefore VoIP issues are commonly broken down into Signaling (SIP) or Audio (RTP) issues for troubleshooting.
- Trunks won't Register
- Inbound calls don't connect or get refused
- Inbound calls drop immediately or are refused
Note: Calls that last more then 2-3 seconds before dropping are more than likely not going to be SIP issues.
- One Way Audio
- No Audio
- Audio Garbled or Choppy
Note: With VoIP/SIP calls being digital, there is no such thing as "static" on a digital calls. The term "Static" typically implies whitenoise that is usually associated with Analog Services such as POTs lines.
If a user on a purely digital call with no analog legs (such as a when using ATA gateways) describes an Audio issue as having Static, you'll need to clarify what they mean. Usually what they mean is Choppy or a Digitized (Robotic) sounding audio. Recordings of these calls can be immensely helpful.
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