Twilio - Network & Connectivity Requirements (Flex & Voice SDK etc)

Twilio Network & Connectivity Requirements Guide

Ensuring proper network configuration is essential for a seamless experience with Twilio’s services. Below are the key requirements for Twilio Voice SDKs, Flex UI, and other relevant services.

1. Twilio Flex UI - Network Requirements

For a smooth experience with Twilio Flex, configure your network to allow:

• Access to Twilio’s Flex infrastructure.
• WebSocket and API requests for Flex services.
• Necessary domains for authentication and real-time communication.
• Full details are available at:
  Twilio Flex UI Requirements

2. General Firewall & Network Configuration

To avoid connectivity issues, ensure your firewall settings allow communication with Twilio services:

• Whitelist Twilio’s IP ranges and domains.
• Open required ports for signalling and media.
• For full details, visit:
  Twilio Firewall Configurations

3. Twilio Voice SDKs - Network Connectivity Requirements

To use Twilio Voice SDKs effectively, ensure your network allows the required connections:

• Whitelist Twilio’s signalling and media servers.
• Allow WebSocket connections for Twilio’s signalling endpoints.
• Open necessary ports for media transmission.
• Refer to the full list of required domains and ports here:
  Twilio Voice SDKs Network Requirements

4. Twilio Video - Network Considerations

For Twilio Video applications, network configurations must allow:

• Secure WebRTC connections.
• Access to Twilio’s TURN and STUN servers for media relay.
• Necessary ports for optimal video performance.
• More information can be found here:
  Twilio Video Network Considerations

By following these guidelines, you can ensure smooth operation and connectivity when using Twilio services.

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