🚦 CPS Control in VOS3000 – Complete Gateway Rate Limit Configuration Guide

CPS Control in VOS3000 is one of the most important advanced configurations for managing high traffic, junk calls, CC traffic and vendor/client overload situations.

VOS3000 is a carrier-grade VoIP softswitch platform widely used for telecom routing, wholesale VoIP, calling card systems and enterprise SIP routing. It is known for stability, high concurrency support and flexible gateway configuration.

📌 What is CPS Control in VOS3000?

CPS means Calls Per Second. In VOS3000, Calls Per Second Control allows administrators to limit how many calls a specific gateway can generate per second.

By default, VOS3000 supports around 1200 CPS which is suitable for large telecom operations. However, sometimes:

• ⚠ Vendor sends excessive burst traffic
• ⚠ Client generates junk traffic
• ⚠ CC attack creates call flood
• ⚠ System gets overloaded due to abnormal spikes

In these cases, CPS Control becomes critical.

⚙️ Where to Find CPS Control in VOS3000?

In VOS3000 interface:

• 🔹 Client Gateway = Mapping Gateway
• 🔹 Vendor Gateway = Routing Gateway

Step to Configure:

1. Go to Gateway Management
2. Edit Mapping Gateway (Client) OR Routing Gateway (Vendor)
3. Open the last tab → Others
4. Before the end, you will see Rate Limit

🔔 Rate Limit = CPS Control in VOS3000

Once enabled and value inserted, system will enforce CPS restriction for that specific gateway.

📊 Where to See CPS Live Statistics?

After enabling CPS Control:

• 📈 Online Mapping Gateway → You will see Calls Per Second tab
• 📈 Online Routing Gateway → CPS column becomes visible

This gives real-time gateway-wise CPS monitoring and better traffic analytics.

🔥 Why CPS Control is Important?

Large volume VoIP traffic often includes:

• 🚫 Junk Traffic
• 🚫 Fraud Attempts
• 🚫 Call Burst from Vendor
• 🚫 CC (Call Center) aggressive traffic
• 🚫 Auto dialer floods

If CPS is not limited:

• ⚠ Server CPU spikes
• ⚠ Database overload
• ⚠ Call drop issues
• ⚠ Vendor instability
• ⚠ Client dispute

Proper CPS tuning ensures:

• ✅ Stable routing
• ✅ Controlled traffic burst
• ✅ Gateway-wise isolation
• ✅ Better monitoring
• ✅ Enterprise-grade traffic engineering

⚡ Best CPS Strategy in VOS3000

There is no universal number. It depends on:

• 🔹 Server hardware
• 🔹 Network quality
• 🔹 Vendor capacity
• 🔹 Client behavior
• 🔹 Average Call Duration

Recommended practice:

• ✔ Start with lower CPS (20–50 for risky vendors)
• ✔ Increase gradually after monitoring
• ✔ Separate high-volume and low-volume vendors
• ✔ Never allow unlimited CPS on new gateway

📘 Advanced Technical Understanding

VOS3000 internally processes signaling queues. When CPS exceeds safe processing limits:

• Queue latency increases
• SIP response delays occur
• Memory allocation spikes
• System instability risk increases

Rate Limit (Calls Per Second Control) acts as a traffic shaping mechanism at gateway level.

🛡 CPS Control vs System Protection

CPS Control is not firewall. It is traffic shaping inside VOS routing engine.

For complete protection combine:

• 🔒 Calls Per Second Control
• 🔒 Proper Server Security
• 🔒 SSH Port Change
• 🔒 Strong Root Password
• 🔒 IP Based Firewall

Read more about system security here: VOS3000 Technical Guide

📞 Professional CPS Configuration Support

If you need professional help for:

• ✔ CPS tuning
• ✔ High volume optimization
• ✔ Gateway traffic balancing
• ✔ Performance troubleshooting

📲 WhatsApp: +8801911119966

❓ Frequently Asked Questions (FAQ)

1️⃣ What is default CPS in VOS3000?

Default system CPS is around 1200 but gateway-specific CPS can be configured using Rate Limit.

2️⃣ Is CPS Control per gateway or global?

CPS Control is configured per gateway (Mapping or Routing).

3️⃣ Does CPS affect ASR?

If configured too low, yes. If properly tuned, it improves system stability.

4️⃣ Can CPS prevent CC attacks?

It helps control burst traffic but should be combined with firewall security.

5️⃣ Where exactly is Rate Limit option?

Edit Gateway → Others Tab → Rate Limit (CPS Control).

6️⃣ Should every vendor have CPS limit?

Yes. Even trusted vendors should have reasonable limits to avoid unexpected traffic spikes.

7️⃣ Is CPS visible in monitoring?

Yes. After enabling, Calls Per Second column appears in Online Gateway view.

📥 Official Resources

• VOS3000 Technical Blog
• Official Blog
• Downloads & Manuals
• Advanced Security Guides

🚀 Final Recommendation

Calls Per Second Control in VOS3000 is not optional for serious telecom operators. It is a core traffic engineering feature that ensures system stability, protects infrastructure and improves routing quality.

For proper configuration, optimization and enterprise setup:

📲 WhatsApp: +8801911119966

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