Module 1: Foundations
RTCP — Feedback, Quality Reporting, and Congestion Control
Learn about rtcp — feedback, quality reporting, and congestion control
Duration: 7 minutes
Level: Advanced
Lesson: 32
RTCP Purpose
RTCP provides the control channel that RTP lacks. While RTP carries media, RTCP carries statistics about that media — enabling quality monitoring, synchronization, and diagnostic capabilities.
RTCP Packet Types
| Type | Abbreviation | Purpose |
|---|---|---|
| 200 | SR | Sender Report: Statistics from active senders |
| 201 | RR | Receiver Report: Statistics from receivers |
| 202 | SDES | Source Description: CNAME, name, email, etc. |
| 203 | BYE | Stream termination notification |
| 204 | APP | Application-defined extensions |
| 207 | XR | Extended Report: Detailed quality metrics |
| slug: "rtcp-feedback" |
Sender Reports (SR)
🔒 Full Course Content Available
This is a preview of the Telephony Mastery Course. The complete lesson includes:
- ✅ Detailed technical explanations
- ✅ Advanced configuration examples
- ✅ Hands-on lab exercises
- ✅ Real-world troubleshooting scenarios
- ✅ Practice quizzes and assessments
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