AI Voice Agent Development

I need an AI voice agent to act as a virtual assistant for inbound calls. The voice agent's primary role will be to provide advisory services based on a knowledge base that I will provide in the form of a PDF file. Key Requirements: - The AI voice agent should be able to handle inbound calls. - It must provide advisory services using a provided knowledge base. - The knowledge base will be in PDF format. May handle multiple calls at a time. Need fixed monthly plan / one time preferred Already Have a 8 sim gsm gateway synway 4008. Ideal Skills and Experience: - Experience in developing AI voice agents. - Proficiency in natural language processing (NLP). - Familiarity with integrating voice agents into calling systems. - Ability to work with and interpret information from PDF documents. Please provide examples of similar projects you've completed. Looking forward to your proposals!