Get API credentials from Advoware β usually an API key or OAuth client from your account or your IT team.
In Retell, open your agent and go to Functions β Add custom function.
Enter the endpoint URL and method, and add your credentials as headers.
Define the parameters the agent should collect from the caller and pass through.
Write the description that tells the agent when to call the function β this is what the model uses to decide.
Test it in the LLM playground, check the response parses, then publish.
New client calls β agent captures the matter details β posts them to your advoware endpoint for review
Handle client data through your firm's existing processor agreements before enabling any write-back.











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