The EU's disclosure requirements

The EU adopted the EU AI Act in 2024, and its obligations take effect in stages. Since August 2, 2026, the transparency rules apply to AI systems that interact directly with people. For phone agents, two points matter above all:

• AI disclosure — callers should be able to tell, at the start of the call, that they’re speaking with an AI and not a human.
• Audio recording — if you record the audio of calls, callers should be informed of that too.

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AI disclosure

The simplest approach is to introduce your agent as an “AI assistant”. The disclosure should come early — ideally within the first one to three sentences, and in any case before you get into the actual topic. You have two options for placement:

• In the greeting — the AI disclosure is part of the first sentence.
• Right after — greet, state the reason for the call, ask whether now is a good time, then identify as AI.

Charlie, your agent builder right in the app, knows the legal requirements and the right wording. It can update your greeting and notices directly, and when you publish it also checks that all requirements are met.

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Audio recording

If you record the audio of a call, the caller must always be informed at the start of the conversation. In Germany, audio recording also requires explicit consent. In telli, you can easily make audio recording conditional on the caller’s consent — so a call is only recorded once they agree.