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Flex UI Requirements

Overview

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Review the hardware, software, and network requirements for running Flex UI to make sure your environment meets these standards.

Hardware requirements

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To comfortably run the Flex UI, an agent's computer must have the following:

CPURAMScreen resolution
Minimum2 Ghz2 GB1024x768

Software requirements

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RequirementDescription
Operating system
  • Windows 10 and 11
  • MacOS
  • Linux Ubuntu or Mint 64-bit
BrowserUse an up-to-date version of your preferred browser:
Make sure you set your browser to full screen or a browser width that's at least 1024. Smaller window sizes may cause some Flex UI pages not to appear correctly.

Network requirements

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This table shows the minimum recommended bandwidth for running Flex UI without significant effect on performance.

BandwidthPackets droppedDelay
Download/Upload200 kb/s20%200 ms

This table shows the domains that you need to add to your allowlists for VPNs and proxies to ensure proper access to Flex UI.

DomainPurpose
*.twilio.comUsed by a variety of Twilio Services, including ones related to Flex.
*.ytica.comUsed by Flex Insights.
*.twiliocdn.comUsed to serve static assets that we provide. This is commonly used for items such as SDK versions or standard media files.
*.twil.ioUsed by Twilio Functions product. It's standard practice for many of our customers to use a Twilio Function and access them from Flex.
*.segment.com and *.segment.ioUsed to provide telemetry for Flex.