![]() Average users are “Satisfied” with the quality of Real-Time communication if the MOS Score is in 4.0 to 4.3 range, and are and “Very Satisfied” if the score is equal to, or exceeds, 4.3. The maximum obtainable score for G.711 codec is 4.4. The most frequently used scale is the following 5-point Absolute Category Rating (ACR) scale: ITU-T P.800.1 and P.800.2 recommendations define common terminology and interpretation for MOS results. MOS is a common measurement used to determine the quality of customer call experience. To understand the results of our experiments, you need to be familiar with the Mean Opinion Score (MOS). We measured several metrics such as the end-to-end latency, packet loss, and jitter across two continents with and without Global Accelerator. ![]() We configured the clients and endpoints (SBC) in AWS Region. ![]() To measure how using Global Accelerator improves VoIP call quality, we conducted a series of experiments. We ran experiments to quantify these improvements, which we describe in the next sections. Real Time Communication over AWS Global Accelerator However, network performance such as latency, jitter, throughput over public internet is unpredictable.įigure 2. In this scenario, local and transit Internet Service Providers (ISPs) carry VoIP traffic between the end users and SBC instances within an AWS Region. Figure 1 depicts a common deployment scenario, with Session Border Controller (SBC) along with Private Branch Exchange (PBX) and PSTN (Public Service Telephone Network) connections. Modern RTC architectures includes a number of key components that allow to establish voice and video live media sessions between participating parties. Using accelerators to improve call performance Ĭustomers such as 8×8 and Craz圜all already use Global Accelerator to improve the user experience for their clients. Test the performance benefits from your own location with a speed comparison tool at. Using accelerators that you configure, Global Accelerator routes TCP or UDP traffic to the application endpoints (such as Amazon EC2 instances, Application Load Balancers, Network Load Balancers, or Elastic IP addresses), and improves the latency, jitter, packet loss and throughput performance of your users’ traffic. These IP addresses are anycast and are advertised globally via AWS edge locations. Global Accelerator provides two static IP addresses for each accelerator. Real-Time Communication on AWS white paper provides and overview of these topics. We expect the readers to be familiar with VoIP terminologies and architectures. RTC applications include voice over IP (VoIP), video conferencing, and messaging. In the telecommunications industry, real-time communication (RTC) refers to live media sessions between users. In addition, we walk you through configuration steps to setup an accelerator for your Voice over IP (VoIP) workloads in real-time communication (RTC) environment, and explain the way for you to do your own end-to-end performance testing to assess the benefits of AWS Global Accelerator for your deployment. ![]() In this blog post, we discuss the performance (voice quality, call setup time, call success rate) improvements delivered with AWS Global Accelerator. ![]() By leveraging Global Accelerator, customers can achieve up to 60% better performance for internet traffic. AWS Global Accelerator is a networking service that decreases latency, delivers greater performance, and achieves higher availability for internet traffic between your users and your applications running on AWS. ![]()
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