Definition
Function calling (or tool calling) is the ability of a language model to trigger external actions or APIs during a conversation, such as checking calendar availability, creating a booking, or looking up an account.
Why it matters
Function calling is what turns a chatbot into a working agent that can actually book, update, and retrieve real data.
Frequently asked questions
What is Function Calling?
Function calling (or tool calling) is the ability of a language model to trigger external actions or APIs during a conversation, such as checking calendar availability, creating a booking, or looking up an account.
Why does Function Calling matter for AI voice agents?
Function calling is what turns a chatbot into a working agent that can actually book, update, and retrieve real data.
How is Function Calling used in AI phone call automation?
In AI phone call automation, Function Calling is part of the Conversational Design foundation. Function calling is what turns a chatbot into a working agent that can actually book, update, and retrieve real data. It connects closely to related concepts like Large Language Model, Intent Recognition, API, which together shape how a voice agent understands callers and completes real tasks such as booking appointments and qualifying leads.
Related Terms
Sources
Definitions and claims on this page are grounded in the following authoritative external references.
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