To achieve a call rate of 1000 calls per second (CPS) with FreeSWITCH on AWS cloud, you'll need to consider several factors including instance type, network configuration, and FreeSWITCH optimization. Here are some methods to help you achieve this requirement:
Choose the Right Instance Type: Select an AWS EC2 instance type that offers high network performance and CPU resources. Instances such as c5, m5, or r5 with high network bandwidth and vCPUs would be suitable for handling high call volumes.
Network Configuration: Optimize your AWS VPC and subnet configurations to minimize latency and maximize throughput. Ensure that your FreeSWITCH instance is placed in a subnet with sufficient bandwidth and low latency to handle the desired call rate.
Vertical Scaling: Increase the instance size (vertical scaling) of your FreeSWITCH server to handle higher call volumes. This involves upgrading to a larger instance type with more CPU cores and memory to support increased processing demands.
Horizontal Scaling: Distribute the call load across multiple FreeSWITCH instances by setting up a load balancer or using a clustered deployment. This allows you to scale out horizontally to handle higher call volumes by adding more instances as needed.
Optimize FreeSWITCH Configuration: Fine-tune the FreeSWITCH configuration settings to optimize performance for high call volumes. This may include adjusting parameters such as max sessions, worker threads, and SIP timeouts to handle the desired CPS.
Media Optimization: Offload media processing tasks such as transcoding and recording to separate instances or services to reduce the load on the FreeSWITCH servers and improve overall performance.
Monitoring and Optimization: Monitor system performance metrics such as CPU utilization, memory usage, and network throughput to identify bottlenecks and optimize system configuration accordingly. Use tools like AWS CloudWatch to gain insights into system performance and make necessary adjustments.
Capacity Planning: Conduct thorough capacity planning to ensure that your AWS infrastructure is capable of supporting the desired call rate under peak load conditions. Consider factors such as expected call volume fluctuations and growth projections when designing your infrastructure.
By implementing these methods and continuously monitoring and optimizing your AWS infrastructure and FreeSWITCH configuration, you can achieve a call rate of 1000 CPS and ensure reliable performance for your VoIP application.