IVR is an automated telephony system that uses voice recognition and touch-tone keypad selections to guide callers through menu options and information, allowing them to handle straightforward tasks independently without the help of a live agent. IVAs are powered by conversational artificial intelligence and analyze customer inputs to respond with relevant information, often using data from a company's CRM platform to offer personalized support through human-like interaction. While both technologies aim to improve efficiency and customer satisfaction, they differ in their capabilities, such as IVR relying on DTMF signaling and simple voice commands versus IVA using advanced NLP and NLU software for more complex interactions. Employing IVR can benefit businesses with streamlined processes, elevated brand perception, and cost-effectiveness, whereas IVA is suitable for companies requiring a state-of-the-art call center with advanced language processing, sentiment analysis, and security features.