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what's the effect of mode 'web' vs mode 'Twilio' ? Mode 'web' seems to be the fastest, but what's the technological difference behind these options please?

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* [List Calls](<https://docs.vapi.ai/api-reference/calls/list-calls>)
* [Get Call](<https://docs.vapi.ai/api-reference/calls/get-call>)
* [Launch Screen Assets](<https://github.com/VapiAI/flutter/blob/main/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md>)
* [How Vapi Works](<https://docs.vapi.ai/learn/platform/how-vapi-works>)
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### Answer
Sorry, I wasn't able to find any information about your question and please let the user know they can get more help at [Contact Us](mailto:support@vapi.ai).

Web Mode => Direct communication
Twilio => Communication via Phone Number (Adds more latency)