[Glossary](https://telxpress.com/glossary/) / Voice # IVR (interactive voice response) An **IVR** , or interactive voice response system, is an automated phone system that interacts with callers through voice prompts and keypad or spoken input to answer questions, collect information or route the call. - Voice - Updated October 11, 2026 - Written by the Telxpress advisory team 01 In depth ## What it is, why it matters and *what to ask a vendor* IVR is the broader category that an auto attendant belongs to. Where an auto attendant mostly routes, an IVR can also collect an account number, read back a balance, take a payment or confirm an appointment. Traditional IVRs follow a fixed script; a conversational IVR or AI voice agent lets the caller speak naturally. Growing businesses meet IVR in two places: as a feature of their own phone system, and as the thing their customers complain about. A well designed IVR removes repetitive calls from the team; a badly designed one hides the exit and drives callers to hang up or to a competitor. Ask a vendor whether the IVR understands natural speech or only keypad input, how it integrates with your CRM or scheduling system, how callers reach a person, what the reports show about where callers abandon, and how payment steps are kept out of recordings if cards are taken by phone. 02 Related terms ## Terms that usually come up *alongside it* - Voice ### [Auto attendant](https://telxpress.com/glossary/auto-attendant/) An auto attendant is the recorded phone menu that greets callers and routes them by keypad or spoken choice (press one for sales), without a live person or a conversation. - Voice ### [AI voice agent](https://telxpress.com/glossary/ai-voice-agent/) An AI voice agent is software that answers phone calls in natural conversation, understands what the caller wants, answers questions, books appointments and transfers or takes messages when a person is needed. - Voice ### [Call routing](https://telxpress.com/glossary/call-routing/) Call routing is the set of rules a phone system or AI agent uses to decide who receives an incoming call, based on the caller, the time, the reason, availability and skills. - Security & compliance ### [PCI DSS](https://telxpress.com/glossary/pci-dss/) PCI DSS (Payment Card Industry Data Security Standard) is the set of security requirements every business that stores, processes or transmits payment card data must meet, including card payments taken over the phone. 03 At Telxpress ## Where this shows up *at Telxpress* The pages and articles where this term does real work: what we advise, build and support. - Page ### [Business VoIP & Cloud Phone Systems in Irvine](https://telxpress.com/solutions/business-technology/phone-systems/) VoIP, cloud phone systems, UCaaS and SIP trunks from Yealink, Nextiva, Avaya, Yeastar and Polycom, installed, supported and ready for AI call handling. - Page ### [Donya AI Voice Agent: Never Miss a Call](https://telxpress.com/solutions/ai/voice-agent/) Donya answers every call 24/7, qualifies leads and books appointments. Call the demo line to hear it. Built and run by Telxpress. Next step ## Want This Applied *to Your Business?* Book a free 30-minute AI readiness consultation. You'll leave with three AI opportunities specific to your business, whether you work with us or not. [Book My Free Consultation](https://telxpress.com/book/) [Take the Free AI Readiness Assessment](https://telxpress.com/ai-readiness/) [Or call 24/7: (949) 861-4500](tel:+19498614500) Last reviewed: October 11, 2026. Published by Telxpress, Irvine, CA.