Call Routing: IVR systems can route calls based on various criteria such as caller input, time of day, caller's location, or language preference.

Automated Responses: IVRs offer pre-recorded messages or automated responses to provide information or guide callers through processes.

Call Recording: Some IVR systems offer call recording for quality assurance, compliance, or training purposes.

Scalability: They should be scalable to accommodate fluctuations in call volume and business growth.

Security: IVR systems often incorporate security measures such as caller authentication to protect sensitive information.

Speech Recognition: They employ advanced speech recognition technology to accurately transcribe spoken words into text.

Personalized Responses: Voice assistants can provide personalized responses and recommendations based on user preferences, history, and context.

Accessibility Features: Voice assistants offer accessibility features such as voice control for users with disabilities, providing them with greater independence and usability.

Security and Privacy: Voice assistants incorporate security measures to protect user data and privacy, including encryption of voice data and options for users to manage their privacy settings.