Call Admission Control (CAC) manages voice network traffic to ensure quality of service by inspecting and controlling inbound and outbound activity based on user-defined policies, preventing network congestion.

How Call Admission Control Works

Call Admission Control (CAC) ensures that voice network traffic is managed effectively to maintain quality of service. It inspects and controls inbound and outbound activity based on predefined policies, preventing network congestion and ensuring optimal performance.

• Inspection: Monitors voice network activity to adhere to policies.

• Control: Manages traffic to prevent congestion and maintain quality.

• Policies: User-defined rules dictate how traffic is handled.

• Quality: Ensures high-quality voice communications by regulating access.

Implementing Call Admission Control

Implementing Call Admission Control (CAC) is essential for maintaining high-quality voice communications in modern networks. By managing voice traffic based on predefined policies, CAC ensures that network resources are used efficiently and service quality is preserved.

• Voice Firewall: Monitors and controls voice traffic to adhere to policies.

• User-Defined Policies: Rules set by administrators to manage traffic.

• Inbound and Outbound Control: Ensures both incoming and outgoing traffic meet quality standards.

• Quality Assurance: Maintains high-quality voice communications by regulating access.

Call Admission Control vs. Traffic Policing

Call Admission Control (CAC) and Traffic Policing are both essential for managing network traffic, but they serve different purposes.

• Focus: CAC specifically targets voice network activity to maintain quality of service, while Traffic Policing applies to all types of network traffic to ensure compliance with predefined limits.

• Mechanism: CAC restricts new calls if resources are insufficient, ensuring existing calls maintain quality. Traffic Policing monitors and controls traffic rates to prevent congestion and ensure fair resource allocation.

Benefits of Call Admission Control

Call Admission Control (CAC) offers numerous benefits for managing network traffic and ensuring high-quality voice communications. By regulating the flow of calls based on available resources, CAC helps maintain optimal performance and prevents network congestion.

• Quality Assurance: Ensures high-quality voice communications by regulating access.

• Resource Management: Efficiently allocates network resources to prevent overload.

• Security: Prevents unauthorized access and potential security breaches.

• Performance: Maintains service quality by admitting new calls only if resources are sufficient.

• Reliability: Enhances overall network reliability by avoiding congestion.