Yes. Every call opens with a brief, required disclosure letting the caller know they're speaking with an automated assistant, not a person. This is built into every try99 account and can't be turned off (see Why every call starts with a short disclosure).
In our experience, this doesn't cost businesses the call — customers calling a trade business mainly care about getting a real person out to fix their problem, not who answers the phone. The disclosure takes a couple of seconds, and the receptionist moves straight into helping with the actual request.
