# 🎙️ Measuring MOS Using Packet Capture & Linux Tools | The Easy Way! 🚀

Mean Opinion Score (MOS) is a key metric for assessing **VoIP call quality**. It ranges from **1 (bad) to 5 (excellent)** and considers factors like **latency, jitter, and packet loss**. A great MOS score ensures crystal-clear audio and happy users! 😊

To **accurately measure MOS**, you can use **packet captures** or powerful **Linux tools**. These methods help pinpoint network issues affecting voice quality. Even better? 🏆 You can **combine them with Nepean Networks' SD-WAN** for next-level **voice quality validation**! 🎯✨

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### **🛠️ Methods to Determine MOS Using Packet Capture & Linux Tools**

#### **1️⃣ Wireshark 🦈 - The GUI Powerhouse**

* Wireshark allows you to **capture and analyze VoIP traffic**.
    
* It automatically calculates **RTP stream statistics**, including **jitter, packet loss, and MOS**.
    
* Steps:
    
    * Capture network traffic.
        
    * Filter **RTP streams**.
        
    * Open **RTP Stream Analysis** to view MOS.
        
* 🎯 **Best for:** GUI-based MOS analysis with deep packet inspection.
    

%[https://hubandspoke.amastelek.com/wireshark-a-powerful-tool-for-network-troubleshooting-cybersecurity] 

#### **2️⃣ TShark 🏗️ - CLI Version of Wireshark**

* TShark is Wireshark’s CLI counterpart, perfect for **automating MOS calculations**.
    
* Run:
    
    ```plaintext
    tshark -i eth0 -Y "rtp" -T fields -e rtp.ssrc -e rtp.p_type -e rtp.timestamp
    ```
    
* 🎯 **Best for:** Automated MOS calculations in scripts and remote servers.
    

#### **3️⃣ PJSIP 🍻 - VoIP Call Simulator**

* PJSIP includes tools like `pjsystest` that **measure latency, jitter, and loss**.
    
* Helps determine **expected MOS values** in a controlled environment.
    
* 🎯 **Best for:** Lab testing before real-world deployment.
    

#### **4️⃣ VoIPmonitor 📈 - Dedicated VoIP Analyzer**

* Captures **SIP and RTP** traffic and **generates MOS scores**.
    
* Includes a web-based dashboard for **live monitoring**.
    
* 🎯 **Best for:** Enterprise-grade **VoIP troubleshooting**.
    

#### **5️⃣ RTPStats 📊 - Simple RTP Analysis**

* A lightweight **Linux CLI tool** for RTP packet stats.
    
* Outputs **packet loss, jitter, and MOS** based on RTP streams.
    
* 🎯 **Best for:** Quick, scriptable MOS calculations.
    

#### **6️⃣ Nepean Networks’ SD-WAN 🚀 - Ultimate Validation Tool**

* Nepean Networks' SD-WAN **automatically tracks MOS**, **jitter**, and **packet loss** in real time! 🏆
    
* **Multi-link optimization** ensures **VoIP calls always take the best path**.
    
* Nepean Networks’ built-in analytics provide **clear, visual proof** of superior call quality! 🔥
    
* 🎯 **Best for:** **End-to-end VoIP assurance** in real-world deployments.
    

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### **🎯 Combining These Methods for Next-Level MOS Validation**

🔗 **Nepean Networks’ SD-WAN + Wireshark + VoIPmonitor = Ultimate Voice Quality Assurance!** ✅

* **Use Wireshark** for **packet capture**.
    
* **Leverage VoIPmonitor** for **real-time SIP/RTP insights**.
    
* **Let Nepean Networks’ SD-WAN optimize call paths** for **seamless, high-MOS calls**! 🎉
    

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### **🏆 Wrap | Validate Your Awesome Voice Quality with Nepean Networks!**

By using **packet capture tools** like **Wireshark, TShark, and VoIPmonitor**, you can **analyze MOS and troubleshoot VoIP issues**. However, **Nepean Networks’ SD-WAN takes things to the next level**—providing real-time **MOS tracking, automatic failover, and QoS enforcement** for **unbeatable call quality**! 🚀🎙️💎

So, why guess your MOS when [Nepean Networks’ SD-WAN](https://nepeannetworks.com) **can prove it’s amazing?** 🔥💡

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### Bonus:

### **2️⃣ sngrep** (Best for SIP/RTP Monitoring & Call Analysis)

🔹 **Features:**  
✅ Real-time SIP call capture and MOS scoring  
✅ Can run **live on an interface**  
✅ Lightweight and **CLI-friendly**

🔹 **Installation & Usage:**

```plaintext
sudo apt install sngrep  # Install sngrep
sngrep -I eth0           # Run on eth0 interface
```

👉 **It will display live SIP call data, including MOS scores.**

%[https://bsky.app/profile/mastelek.bsky.social/post/3lqwqfwcldc2t]