> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.ecall-messaging.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What is "Text-to-Speech"?

# What is "Text-to-Speech"?

Text-to-Speech messages are sent directly from your eCall-Account or via interface (API). eCall converts the written text into speech. The system calls to the receiver and reads him the text.