> ## 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).

# To whom can I send a "text-to-speech" message?

Text-to-Speech messages can be sent to any telephone (mobile or fixed network) with worldwide support (country code necessary outside of Switzerland).

The system supports the following languages: English, German, French and Italien

**Note**: Voice messages cannot be sent to numbers with the following dial code in Switzerland: 074